Home
Class 12
PHYSICS
A battery supplies 150W and 196 W power ...

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

`0.5Omega`

B

`1Omega`

C

`2Omega`

D

`2.5Omega`

Text Solution

Verified by Experts

`(V^2 times 6)/(r+6)^2=150 and (V^2 times 4)/(r+4)^2=196 implies r=1Omega`
Promotional Banner

Similar Questions

Explore conceptually related problems

Two resistors of resistances 2 Omega and 4 Omega when connected to a battery will have :

A battery of EMF E produces currents 4 A and 3 A when connected to external resistance 1 Omega and 2 Omega respectively. The internal resistance of the battery is

Two resistance (200 pm 4) Omega and (150 pm 3) Omega are connected in series . What is their equivalent resistance ?

The current in a circuit containing a battery connected to 2Omega resistance is 0.9A. When a resistance of 7Omega connected to the same battery, the current observed in the circuit is 0.3 A. Then the internal resistance of te battery is

When the resistance of 9 Omega is connected at the ends of a battery, its potential difference decreases from 40 volt to 30 volt . The internal resistance of the battery is

A galvanometer, together with an unknown resistance in series, is connected across two identical batteries of each 1.5 V . When the batteries are connected in series,the galvanometer records a current of 1 A , and when the batteries are connected in parallel, the current is 0.6 A . In this case, the internal resistance of the battery is 1//'**' Omega . What is the value of '**'?

How can three resistors of resistances 2 Omega,3 Omega , and 6 Omega be connected to give a total resistance of (a) 4 Omega (b) 1 Omega ?