Home
Class 12
PHYSICS
A battery is supplying power to a tape r...

A battery is supplying power to a tape recorder by cable of resistance of `0.02 Omega`. If the battery is generating 50 W power at 5 V, then the power received by the tape recorder is

A

50 W

B

45 W

C

30 W

D

48 W

Text Solution

Verified by Experts

The correct Answer is:
D
d. `P = VI or 50 = 5 xx I or I = 10 A`
Power lost in cable `= I^2R = 10 xx 10 xx 0.2 = 2W`
Power supplied to the tape recorder `= 50 W - 2 W = 48 W` .
Promotional Banner

Similar Questions

Explore conceptually related problems

A generator is supplying power to a factory by cables of resistance 20 Omega . If the generator is generating 50 kW power as 5000 V , what is the power received by factory ?

A generator is supplying power to a factory by cables of resistance 20Omega . If the generator is generating 50kW power at 5000V. What is the power received by the factory?

The power consumed by the 4 V battery is

A cable of resistance 10 Omega carries electric power from a generator producing 250 kW at 10,000 V . The current in the cable is

Resistors P , Q , and R in the circuit have equal resistances. If the battery is supplying a total power of 12 W , what is the power dissipated as heat in resistors R ?

Calculate the electric power of an electric bulb of resistance 400 Omega connected to a 220 V supply.

For maximum power from battery the internal resistance of battery r is

A battery of emf 10 V is connected with a load resistance of 50 Omega the total power delivered by the battery is 2 W. If load resistance is replaced by R then power delivered is 4 W, the value of R is

A battery supplies 150W and 196 W power to two resistance of 6Omega and 4Omega when they are connected separately to it. The internal resistance of the battery is:-

A battery has an open circuit potential difference of 6V between its terminals. When a load resistance of 60 Omega is connected across the battery,the total power supplied by the bttery is 0.4 W . What should be the load resistance R , so that maximum power will be dissipated in R . Calculated this power. What is the total power supplied by the battery when such a load is connected?