Current Electricity

Related Questions

• Three identical resistances A, B and C are connected as shown in the given figure. The heat produced will be maximum

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• An external resistance R is connected to a battery of e.m.f.V and internal resistance r. The joule heat produced in resistor R is maximum when R is equal to

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• Conductivity increases in the order of

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• A potentiometer wire has length 10 m and resistance $20\,\Omega $. A 2. 5 V battery of negligible internal resistance is connected across the wire with an $80\,\Omega $ series resistance. The potential gradient on the wire will be

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• In the circuit shown in the figure, the current flowing in $2\,\Omega $ resistance

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