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In the above circuit value of R=10 r. If a total current of 1A is flowing through the circuit the value of E is?

 

Option: 1

10\: r


Option: 2

11\: r


Option: 3

9\: r


Option: 4

0


Answers (1)

best_answer

 Electromotive force (Emf) of a cell: 

 It is the work done / energy carried by unit charge passing through one complete cycle of the circuit.

E=W/q

unit of emf is volt.

 

 \frac{E}{10r+r}= 1\\*\\ E=11\: r

Posted by

sudhir.kumar

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