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When a battery connected across a resist...

When a battery connected across a resistor of `16 Omega`, the voltage across the resistor is 12 V. When the same battery is connected across a resistor of `10 Omega`, voltage across it is 11 V. The internal resistance of the battery (in ohm) is

A

`10//7`

B

`20//7`

C

`25//7`

D

`30//7`

Text Solution

Verified by Experts

`E=V+Ir=12+12/16r….(i) , E=1+11/10r …..(ii)` Solve for `r=20/7 Omega`
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