A circular loop of area 0.02 m $^{2}$ carrying a current of 10A, is held with its plane perpendicular to a magnetic field induction 0.2 T. The torque acting on the loop is

0.01 Nm

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0.001 Nm

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zero

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0.8 Nm

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Solution

The correct option is C zero
A circular current carrying coil aligns itself in a magnetic field such that its plane is perpendicular to the direction of the field therefore, it is its equilibrium position therefore, no torque is acting on it.

Torque is given as:
$τ = N i A B sin θ = 0$ $(∵ θ = 0^{o})$

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A circular loop of area 0.02 m2 carrying a current of 10A, is held with its plane perpendicular to a magnetic field induction 0.2 T. The torque acting on the loop is

The correct option is C zeroA circular current carrying coil aligns itself in a magnetic field such that its plane is perpendicular to the direction of the field therefore, it is its equilibrium position therefore, no torque is acting on it.Torque is given as:τ=NiABsinθ=0 (∵θ=0o)

A circular loop of area 0.02 m $^{2}$ carrying a current of 10A, is held with its plane perpendicular to a magnetic field induction 0.2 T. The torque acting on the loop is