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A 6 V battery is connected across a lamp whose resistance is 20 Ω. Calculate the value of the extra resistance in Ω which must be used in the circuit to get 0.25 A current in the circuit. |
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Answer» A 6 V battery is connected across a lamp whose resistance is 20 Ω. Calculate the value of the extra resistance in Ω which must be used in the circuit to get 0.25 A current in the circuit. |
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