Calculate the resistance of a 2 km length of aluminum overhead power cable if the cross-sectional area of the cable is 100mm?. Take the resistivity of aluminum to be 0.03 x 106 0-m. For the circuit shown, find the Equivalent resistance, the value of supply voltage, the value of current I and the voltage drop at 60ohm resistor. 2=3 A R R3 R2 60 0 ·20여 = 10 N

Delmar's Standard Textbook Of Electricity
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ISBN:9781337900348
Author:Stephen L. Herman
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Chapter17: Resistive-inductive Series Circuits
Section: Chapter Questions
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1. Calculate the resistance of a 2 km length of aluminum overhead power cable if the
cross-sectional area of the cable is 100mm². Take the resistivity of aluminum to be
0.03 x 106 Q-m.
2. For the circuit shown, find the Equivalent resistance, the value of supply voltage, the
value of current I and the voltage drop at 60ohm resistor.
2=3 A
R2
R1
202
R3
= 60 N
-10 Ω
3. Find the current flowing and voltage drop at R,
R1
R2
3002
1002
R3
Es
R4
1k2
400 2
300V
Transcribed Image Text:1. Calculate the resistance of a 2 km length of aluminum overhead power cable if the cross-sectional area of the cable is 100mm². Take the resistivity of aluminum to be 0.03 x 106 Q-m. 2. For the circuit shown, find the Equivalent resistance, the value of supply voltage, the value of current I and the voltage drop at 60ohm resistor. 2=3 A R2 R1 202 R3 = 60 N -10 Ω 3. Find the current flowing and voltage drop at R, R1 R2 3002 1002 R3 Es R4 1k2 400 2 300V
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