Question

a battery of 7v with internal resistance 3 ohm &a 3v with internal resistance of 1 ohm are connected to 10 ohm resistor .find current in resistor?​

Answer 1

Answer:

Total EMF = 7+3 = 10V (E)

IR + Ir = E

I (R+r) = E

I (10+1+3) = 10

I = 10/14 = 0.71A

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