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Q.

If the resistance of the circuit is doubled, but the voltage remains the same the current will be [[1]] .


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Detailed Solution

If the resistance of the circuit is doubled, but the voltage remains the same the current will be halved.
Ohm's law gives the relation between the potential difference or voltage and the current in a conducting wire. It states that the voltage is directly proportional to the current in wire.
V= RI 
Where R is the resistance, I is the current and V is the voltage
VI=R or VR=I
VI'=2R
V2R=I'
I2= I'
If the resistance is doubled, from ohm’s law the current will become half of the initial value.
   
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