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  • 10 identical cells each with emf 2V and internal resistance 1 are connected in series with an external resistor.

10 identical cells each with emf 2V and internal resistance 1 are connected in series with an external resistor. The maximum power (in W ) dissipated through an external resistance is

Option: 1

10


Option: 2

5


Option: 3

15


Option: 4

20


Answers (1)

best_answer

As we learnt

 

Condition for Maximum Power -

 

R=nr

P_{max}=n(\frac{E^{2}}{4r})

- wherein

when nr<<R

 

 =10*\frac{2^2}{4*1}= 10W

 

Posted by

Ritika Kankaria

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