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Question

Keeping the potential difference constant, the resistance of a circuit is doubled. The current will become:

(a) double
(b) half
(c) one-fourth
(d) four times


Solution

 (b) half

As we know from Ohm’s law:
Voltage = Current x Resistance
V = IR
If the voltage is constant, the resistance is doubled and the current becomes half.


Science
Lakhmir Physics 2013
Standard X

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