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A 10V battery of negligible internal resistance is connected across a 200V battery and a resistance of 38Ω as shown in the figure.

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A 10V battery of negligible internal resistance is connected across a 200V battery and a resistance of 38Ω as shown in the figure. Find the value of the current in circuit.

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If cells are in oppositions

Enet = E1 – E2
= (200 – 10)V = 190V
Current I =Enet/Req = 190/38 = 5A

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