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In the given circuit, an ideal voltmeter connected across the 10 resistance reads 2V. The internal resistance r1, of each cell is:

(a)

0.5

(b)

0

(c)

1.5

(d)

1


Question ID - 51337 | Toppr Answer

In the given circuit, an ideal voltmeter connected across the 10 resistance reads 2V. The internal resistance r1, of each cell is:

(a)

0.5

(b)

0

(c)

1.5

(d)

1

1 Answer - 5876 Votes

3537

Answer Key : (a) -

For the Given circuit

Given that   VAB=2 V

                      I= A

Also        

I(2r+2)=1.5+1.5−VAB

⇒ 2r+2=(3−2)3

 ⇒  r=



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