First slide

Force on a current carrying wire placed in a magnetic field

Question

A conductor, in the form of a right angle $∠ A B C$ with AB = 3 cm and BC = 4 cm, carries a current of 10 A. There is a uniform magnetic field of 5 T perpendicular to the plane of the conductor. The force on the conductor will be

Moderate

A

1.5 N
B

2.0 N
C

2.5 N
D

3.5 N

Solution

According to the question figure can be drawn as shown below.
Force on the conductor ABC = Force on the conductor AC
$= 5 \times 10 \times (5 \times 10^{- 2}) = 2 .5 N$

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