Current Electricity

Related Questions

• Which is a wrong statement

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• An electric lamp is marked 60 W, 230 V. The cost of a 1 kWh of energy is Rs. 1.25. The cost of using this lamp 8 hrs a day for 30 day is

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• Two wires ‘A’ and ‘B’ of the same material have their lengths in the ratio 1 : 2 and radii in the ratio 2 : 1. The two wires are connected in parallel across a battery. The ratio of the heat produced in ‘A’ to the heat produced in ‘B’ for the same time is

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• If two wires having resistance R and 2R. Both joined in series and in parallel then ratio of heat generated in this situation, applying the same voltage,

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• In Wheatstone's bridge $P = 9$ ohm, $Q = 11$ ohm, $R = 4$ ohm and $S = 6$ ohm. How much resistance must be put in parallel to the resistance $S$ to balance the bridge

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