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Question 76
Medium

A resistor of resistance R R\,R and four identical cells of emf E E\,E and internal resistance r r\,r are connected as shown.

Circuit diagram with four parallel cells and a resistor

What is the current in the resistor?

4E4R+r\frac{4E}{4R + r}4R+r4E​

16E4R+r\frac{16E}{4R + r}4R+r16E​

ER\frac{E}{R}RE​

4ER\frac{4E}{R}R4E​

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