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Phosphor bronze is an alloy of...

Phosphor bronze is an alloy of

A

P, Cu and Sn

B

P, Cu and Sb

C

P, Zn and Sn

D

P, Cu and As

Text Solution

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The correct Answer is:
A
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A moving coil galvanometer consists of a coil of N turns are area A suspended by a thin phosphor bronze strip in radial magnetic field B. The moment of inertia of the coil about the axis of rotation is l and c is the torsional constant of the phosphor bronze strip. When a current i is passed through the coil, it deffects through an angle theta Magnitude of the torque experienced by the coil is independent of

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A moving coil galvanometer consists of a coil of N turns are area A suspended by a thin phosphor bronze strip in radial magnetic field B. The moment of inertia of the coil about the axis of rotation is l and c is the torsional constant of the phosphor bronze strip. When a current i is passed through the coil, it deffects through an angle theta When a charge Q is almost instantly through the coil the angular speed omega acquired by the coil is