Question

A factory gets its electrical power from a generator 2 km away. The two wires connecting the generator to the factory terminals have a resistance of 0.04 ohm/km. When the generator supplies 50 A to the factory, the terminal voltage at the generator is 220 V. A voltmeter connected to the factory terminal should then read (a) 100 V (b) 200 V (c) 232 V (d) 212 V​

Answer 1

Answer:

Output voltage at the end of factory will be 110 Volts

Explanation:

Resistance of the wire is given as

R = \rho L

R = 0.5 ( 2)

R = 1 ohm

now we know by ohm's law

\Delta V = i R

\Delta V = 10(1)

\Delta V = 10 volts

so voltage drop across the wire is 10 volts and hence the terminal voltage at the end of factory will be

V_{out} = 120 - 10

V_{out} = 110 V

Answer 2

Answer:

answer

A generator supplied power to a factory through cables of total resistance 20Ω . The potential difference at the generator is 5kV and the power output ...

Explanation:

this is correct