Current Electricity

Related Questions

• An ammeter of 100 $\Omega$ resistance gives full deflection for the current of $10^{–5}$ amp. Now the shunt resistance required to convert it into ammeter of 1 amp. range, will be

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• Two bulbs are in parallel and they together consume 48 W from a battery of 6 V. The resistance of each bulb is

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• Four wires of equal length and of resistances 10 ohms each are connected in the form of a square. The equivalent resistance between two opposite corners of the square is

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• A heating coil can heat the water of a vessel from $20^\circ C$ to $60^\circ C$ in 30 minutes. Two such heating coils are put in series and then used to heat the same amount of water through the same temperature range. The time taken now will be (neglecting thermal capacity of the coils)

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• Emf is most closely related to

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