Please Answer Correctly 1. If a 1.5 m length of resistance wire has a resistance of 1.9 Ω and the wire has a diameter of 0.9 mm, calculate the resistivity of the wire. 2. The length of a piece of wire is 4 m and the resistance is 1.6 Ω. If the electrical resistance of the wire is 8 x 10-7 Ωm, what is the cross-sectional area of the wire? 3. A 2m long piece of wire has a cross-section area of 0.15 mm2. What is the resistance of the wire if its resistivity is 2x10-8 Ωm? 4. A 2m long wire with a cross-sectional area of 1 mm2 has a resistance of 16 Ω. What is the resistance of the wire if the cross-sectional area is 2 mm2? 5. If the resistance of a wire is 16 Ω, the length of the wire is 4 m. What is the resistance of the wire if it is 1 m long? 6. The length of a wire is 1m. If the wire is now cut to 0.5 m, the resistance of the wire becomes .... (same/half times larger / twice larger) 7. If the 1.25 m length of resistance wire has a resistance of 3 Ω and the wire has a diameter of 0.5 m. The resistivity of the wire is...
1. Please Answer Correctly 1. If a 1.5 m length of resistance wire has a resistance of 1.9 Ω and the wire has a diameter of 0.9 mm, calculate the resistivity of the wire. 2. The length of a piece of wire is 4 m and the resistance is 1.6 Ω. If the electrical resistance of the wire is 8 x 10-7 Ωm, what is the cross-sectional area of the wire? 3. A 2m long piece of wire has a cross-section area of 0.15 mm2. What is the resistance of the wire if its resistivity is 2x10-8 Ωm? 4. A 2m long wire with a cross-sectional area of 1 mm2 has a resistance of 16 Ω. What is the resistance of the wire if the cross-sectional area is 2 mm2? 5. If the resistance of a wire is 16 Ω, the length of the wire is 4 m. What is the resistance of the wire if it is 1 m long? 6. The length of a wire is 1m. If the wire is now cut to 0.5 m, the resistance of the wire becomes .... (same/half times larger / twice larger) 7. If the 1.25 m length of resistance wire has a resistance of 3 Ω and the wire has a diameter of 0.5 m. The resistivity of the wire is...
Jawaban:
Tolong Jawab Dengan Benar
1. Jika kawat hambatan sepanjang 1,5 m memiliki hambatan 1,9 dan kawat memiliki diameter 0,9 mm, hitunglah hambatan kawat tersebut.
2. Panjang seutas kawat adalah 4 m dan hambatannya 1,6 . Jika hambatan listrik kawat adalah 8 x 10-7 m, berapa luas penampang kawat tersebut?
3. Sepotong kawat sepanjang 2m memiliki luas penampang 0,15 mm2. Berapakah hambatan kawat jika resistivitasnya 2x10-8 m?
4. Sebuah kawat sepanjang 2m dengan luas penampang 1 mm2 memiliki hambatan 16 . Berapakah hambatan kawat jika luas penampangnya 2 mm2?
5. Jika hambatan sebuah kawat adalah 16 , panjang kawat tersebut adalah 4 m. Berapakah hambatan kawat jika panjangnya 1 m?
6. Panjang seutas kawat adalah 1m. Jika kawat sekarang dipotong menjadi 0,5 m, hambatan kawat
menjadi .... (sama/setengah kali lebih besar / dua kali lebih besar)
7. Jika panjang kawat hambatan 1,25 m memiliki hambatan 3 dan kawat memiliki diameter 0,5 m. Resistivitas kawat tersebut adalah...
Penjelasan:
ini arti nya doang yaヾ(＾-＾)ノjawaban nya sendiri aja takut nya salah klo aku yg Jawabಥ‿ಥ makasih
2. What is the resistance of a nichrome wire 1 mm in diameter and 1 m in length?
jawaban:
tentukan luas penampang kawat, A
A = 1/4 πd²
A = 1/4 × 3,14 × 10⁻⁸
A = 7,85 × 10⁻⁹ m²
hambatan pada kawat ditentukan dengan persamaan
R = ρ × L / A
R = 10⁻⁶ × 1 / (7,85 × 10⁻⁹)
R = 127,4 Ω
dengan menggunakan hukum ohm
V = I × R
I = V / R
I = 5 / 127,4
I = 0,039 A
I = 39 mA
jadi arus yang mengalir pada kawat tersebut adalah 39 mA
maap kalo salah
3. Mr Tan cuts a coil of wire into two pieces in the ratio of 3 : 4. The length of the longer piece of wire is 32 cm. What is the total length of the coil of wire?
Jawaban:
the total length = 7/4 x 32 = 56 cm
4. the perimeter of a triangle is 140cm the sum of the length of two of the sided equals the length of the shortest leg is 10 cm less than the length of the longlest leg find the length of the sides of the triangle
Jawaban:
Penjelasan:
A= length of sided side(sisi kaki segitiga)
B=base(alas segitiga)
2A=B-10
B=2A+10. (pers.1)
2A+B=140. (Substitusikan pers.1)
2A+(2A+10)=140
4A+10=140
4A=130
A=130/4=32.5 (. In english means comma)
B=2A+10=65+10=75 cm
5. Henry wants to make a cubic frame using a piece of wire with a length of 150 cm. If the volume of the cube is 2197 cm³, is the length of the wire sufficient? Give a reason for your answer. please answer :)
Jawaban:
maaf gk bisa bantu
Penjelasan:
makasi point nya
6. A wire is bent into a rectangle. The ratio of the length of the rectangle to its breadth is 7 : 5. If the total length of the wire is 240 cm, find the area of the rectangle formed by the wire. a. 1,750 square centimetres b. 2,250 square centimetres c. 3,500 square centimetres d. 4,250 square centimetres
Jawaban:
B
Penjelasan dengan langkah-langkah:
maaf kalo slaah jadiin jawban tercedas
7. John cuts a coil of wire into two pieces in the ratio of 5 : 1. The length of the coil of wire is 180 cm. How long is the long wire?
150 cm
Penjelasan dengan langkah-langkah:
the length of the long wire is
5/(1+5) x 180 cm = 5/6 x 180 cm
= 150 cm
8. ahmad made a pyramid of wire with a square base with a side length of 8 cm and an upright edges of 10 cm.the length of wire needed is
Jawaban:
ahmad membuat sebuah piramida dari kawat dengan alas persegi dengan panjang sisi 8 cm dan rusuk tegak 10 cm. panjang kawat yang dibutuhkan adalah
9. Tolong dibantu jawabannya ya...Define the length of wire that needed to make a cube framework with the edge length of 8,5 cm!
Jawab:
Penjelasan dengan langkah-langkah:
Panjang kawat yg di butuhkan
= 4s + 4s + 4s
= 4(8,5)+4(8,5)+4(8,5)
=34+34+34
=102 cm
10. The weight of a piece of wire is directly proportional to its length. A piece of wire is 25 cm long and has a weight of 6 grams. What is the weight of another piece of the same wire which is 30 cm long.
step-by-step explanation :
According to the question
25 cm piece of wire has weight of 6 grams
So, 1 cm of wire will has a weight of 0.24 grams
( as 25cm weight = 6grams,
1cm = 6/25 grams = 0.24 grams)
As 1 cm = 0.24 grams so,
30 cm = 0.24 x 30 grams
= 7.2 grams
11. Sally uses a piece of wire 60 cm long to form a rectangle. The length of the rectangle is 5 cm longer than its breadth. What is the length of the rectangle? Tolong jawab plss
Jawaban:
20 cm
Penjelasan dengan langkah-langkah:
translate : "Sally menggunakan seutas kawat yang panjangnya 60 cm untuk membentuk persegi panjang. Panjang persegi panjang tersebut lebih panjang 5 cm dari lebarnya. Berapakah panjang persegi panjang tersebut?"
persegi panjang sisinya ada 4
lebar persegi panjang lebih kecil 5 cm
lebar persegi panjang ada 2 sisi
5×2 = 10
10×2 =20
60-20=40
40÷2 =20 cm
Maaf gambarnya jelek
Jawab:
14,5 cm
Penjelasan dengan langkah-langkah:
Wire for a rectangle = 60 cm --> Rectangle perimeter
Rectangle length (L) = Rectangle breadth (B) + 5 cm
L = B + 5
B = L - 5
Perimeter = 2 x (length + breadth)
60 = 2 x (L + L - 5)
60 = 2 x (2L - 5)
60 = 4B - 10
60 - 10 = 4B
50 = 4B
4B = 50
B = 50 : 4
B = 14,5 cm
Catatan:
Length = Panjang
Breadth = Lebar
Perimeter = Keliling
12. A straight wire carrying a current of 2A is placed in a 0.5 T magnetic field perpendicular to the current. If the Lorentz force acting on the wire is 2N, then the length of the wire is..tolong jawab yaa makasihh
Given :
I = 2 Amphere
B = 0,5 Tesla
F = 20 Newton
Asked : The Length of Wire ?
Answer :
[tex]\displaystyle F = B\times I \times L\\\\20 = 0,5 \times 2 \times L\\\\20 = 1 \times L\\\\20 = L[/tex]
So, The length of wire is 20 Meters
13. A wire made of an unknown substance has a resistance of 125 mω. the wire has a length of 1.8 m and a cross-sectional area of 2.35×10 -5 m2 .what is the resistivity of the substance from which the wire is made? give your answer in scientific notation to one decimal place.
Jawaban:
g5v6vubb7buinooninninububybbubugnunibhuibnihih
Penjelasan:
ghhvhhhhh hh
14. a piece of wire of length 13.8 is bent to form a square find the area of the square formed
Jawab: 11.9025
Penjelasan dengan langkah-langkah:
side = [tex]\frac{13.8}{4}[/tex] = 3.45
area = side x side = 3.45 x 3.45 = 11.9025
15. A piece of wire is bent to form a triangle. The sides of the triangle are in the ratio 3:4:5. The length of the longest side is 35cm. Find the length of the wire used to form the triangle.
[tex] \frac{3 + 4 + 5}{5} \times 35 \: cm \\ \\ \frac{12}{5} \times 35 \: cm = 84 \: cm[/tex]
16. Sonia uses a piece of wire 100 cm to form a rectangle. The length of rectangle is 10 cm longer than its width. The ratio of width to the length of rectangle is pls jawab yang cpt aku bentar lagi udah mau kumpulin ulangan
Jawab:
ratio simplest form: 3:2
Penjelasan dengan langkah-langkah:
ratio asli nya= 60:40
satu length= 30
satu width= 20
17. determine:a) the length of HB b) the length of BG c) the area of BDHF
(Langsung caranya)
a) DB = √AB² + AD² = √4² + 3² = √25 = 5cm
HB = √HD² + DB² = √10² + 5² = √125 = 25 cm
b) HB = BG = AH = EB = HG
HB = BG = 25 cm
c) Area of BDHF = luas BDHF
Luas BDHF = p x l = 10 x 5 = 50 cm²
Tandai jawaban sebagai yang terbaik. Terima kasih.
18. At a temperature of 20°C,the length of the iron wire is 20m. What is the length of the iron wire at 100°C. If the coefficient of the iron length is 1.1x10-5/°C?
Jawaban:
Pada suhu 20°C panjang kawat besi adalah 20 meter. Panjang kawat besi tersebut pada suhu 100°C. Jika koefisien muai panjang besi 1,1 X 10 pangkat -5 /°C adalah 20,0176 m
PEMBAHASAN
Diketahui
Lo = 20
ΔT = 100°C - 20°C = 80°C
α = 1,1 x 10⁻⁵ /°C
Ditanya
L = ?
PENYELESAIAN
\boxed {SUHU}
SUHU
Suhu merupakan ukuran keadaan panas/dingin dari suatu benda. Alat untuk mengukur suhu adalah Termometer. Terdapat 4 jenis termometer yaitu Termometer Reamur, Termometer Celcius, Termometer Fahrenheit dan Termometer Kelvin.
Termometer Reamur :
- Titik atas 80°R
- Titik bawah 0°R
Termometer Celcius
- Titik atas 100°C
- Titik bawah 0°C
Termometer Fahrenheit
- Titik atas 212°F
- Titik bawah 32°F
Termometer Kelvin
- Titik atas 373 K
- Titik bawah 273 K
Perbandingan keempat suhu tsb, sebagai berikut
\boxed { \frac {R}{80} = \frac {C}{100} = \frac {F-32}{180} = \frac {K - 273}{100}}
80
R
=
100
C
=
180
F−32
=
100
K−273
\boxed {KALOR}
KALOR
Kalor merupakan suatu bentuk energi yang dihasilkan karena adanya suhu atau temperatur. Secara umum kalor dapat berpindah dari suhu yg lebih tinggi ke suhu yg lebih rendah, ataupun sebaliknya.
\boxed {Q = m c \Delta T}
Q=mcΔT
Q = Kalor (Joule)
m = massa benda (kg)
c = massa jenis benda (J/kg°C)
ΔT = perubahan suhu (°C)
•> [ASAS BLACK]
Jika dua buah benda yg memiliki perbedaan suhu dicampurkan, akan terjadi proses perpindahan kalor hingga tercapainya suhu kesetimbangan.
\boxed {Q_{lepas} = Q_{terima}}
Q
lepas
=Q
terima
\boxed {PEMUAIAN}
PEMUAIAN
Pemuaian berarti bertambahnya panjang, luas ataupun suatu volume dari benda yang memiliki koefisien muai karena adanya kenaikan suhu. Secara umum, pemuaian ada 3 yakni Pemuaian Panjang, Pemuaian Luas dan Pemuaian Volume.
Pemuaian Panjang memiliki koefisien muai α , Pemuaian Luas memiliki koefisien muai β dan Pemuaian Volume memiliki koefisien muai γ.
Pemuaian Panjang,
\boxed {L = Lo ( 1 + \alpha \Delta t)}
L=Lo(1+αΔt)
Pemuaian Luas,
\boxed {A = Ao ( 1 + \beta \Delta t)}
A=Ao(1+βΔt)
Pemuaian Volume
\boxed {V = Vo ( 1 + \gamma \Delta t)}
V=Vo(1+γΔt)
Maka,
L = Lo ( 1 + α • ΔT )
L = 20 ( 1 + 1,1 x 10⁻⁵ • 80 )
L = 20 ( 1 + 8,8 x 10⁻⁴ )
L = 20 ( 1,00088 )
L = 20,0176 m
Penjelasan:
Semoga Dapat Bermanfaat:))
19. Agung has a 5 meter long wire (kawat). the wire is used to make a cube frame with a length of 35 cm. the rest of wire is
[tex]the \: length \: of \: a \: cube \: frame \\ 12 \: edges \times side \: length \\ 12 \times 35 \: cm \\ 420 \: cm \\ \\ the \: rest \: of \: wire \\ 500 \: cm - 420 \: cm \\ 80 \: cm[/tex]
20. Sonia uses a piece of wire 100 cm to form a rectangle. The length of rectangle is 10 cm longer than its width. The ratio of width to the length of rectangle is
Jawaban:
3:2
Penjelasan dengan langkah-langkah:
Diketahui:
panjang kawat=100cm
dibuat untuk (rectangle) persegi panjang, dimana panjangnya lebih 10cm daripada lebarnya.
Ditanya:
rasio perbandingan panjang dan lebar persegi panjang?
jawab:
jumlah sisi lebar=2
jumlah sisi panjang=2
lebih sisi panjang=2x10cm= 20cm
sisi lebar =100-20=80
=80/20
=40cm
1sisilebar=40/2=20cm
1sisipanjang=20+10(kelebihanpanjang)
=30cm
PERBANDINGANPANJANG&LEBAR:
30:20=3:2
0 Komentar