Q149 / 160 · TS EAMCET 2021 (04 Aug Shift 2) · Physics

The force acting on a current carrying wire joining two fixed points $A$ and $B$ in a uniform magnetic field

A
increases exponentially with increase in current
B
is inversely proportional to the magnitude of the magnetic field
Correct answer
C
is independent of the shape of the wire
D
is parallel to the direction of the magnetic field

Solution

The formula of force due to current-carrying wire in terms of strength of magnetic field and length of the wire and current, $F = i B l \sin θ$ , it is depends on the direction of the magnetic field.

And the strength of the force does not depends on the shape of the wire.

Hence, the correct answer is option: 'C'.

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The force acting on a current carrying wire joining two fixed points A and B in a uniform magnetic field

Solution

Relevant Questions

The force acting on a current carrying wire joining two fixed points $A$ and $B$ in a uniform magnetic field