The circuit shown in the figure contains three resistors R 1 = 100 Ω Ω , R 2 = 50 Ω Ω and R 3 = 20 Ω Ω and cells of E.M.F.s E 1 = 2 V and E 2 . The ammeter indicates a current of 50 mA. Find the E.M.F (in V) of the second cell. (The internal resistance of the ammeter and of the cell should be neglected)
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(4)
Using s KVL:
So, the direction of 
is opposite to what we have assumed. If we redraw the circuit.
Using KVL:
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