If the current carried by an irregular conductor is doubled in a parallel (to the plane of the conductor) magnetic field, then force experienced by wire is increased ___________ times.

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Solution

Force on conductor is $F = B I d l$ .
$d l =$ small strip length.
If $I$ is double then force on $d l$ length is also double. S0, answer is $2$ .

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If the current carried by an irregular conductor is doubled in a parallel (to the plane of the conductor) magnetic field, then force experienced by wire is increased ___________ times.

Force on conductor is F=BIdl.dl= small strip length. If I is double then force on dl length is also double. S0, answer is 2.

Force on conductor is $F = B I d l$ .
$d l =$ small strip length.
If $I$ is double then force on $d l$ length is also double. S0, answer is $2$ .