Question 427: Current Electricity

Question

In the circuit, the galvanometer $$G$$ shows zero deflection. If the batteries $$A$$ and $$B$$ have negligible internal resistance, the value of the resistor $$R$$ will be -

Accepted Answer

$$iR = 2 = 12 - 500i$$
$$	herefore$$ $$i = {1 \over {50}}$$
$$	herefore$$ $${1 \over {50}} 	imes R = 2$$
$$R = 100\Omega $$

Answer

$$100\Omega $$

Answer

$$200\Omega $$

Answer

$$1000\Omega $$

Answer

$$500\Omega $$

Current Electricity

In the circuit, the galvanometer $G shows zero deflection. If the batteries A and B have negligible internal resistance, the value of the resistor R$ will be -

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