State the advantages and disadvantages of a moving coil galvanometer.
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Explanation:
A galvanometer is a device that is used to detect small electric current or measure its magnitude.
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Advantages And Disadvantages Of A Moving Coil Galvanometer
High sensitivity.
Not easily affected by stray magnetic fields.
The torque to weight ratio is high.
High accuracy and reliability.
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Explanation:
State the advantages and disadvantages of a moving coil galvanometer.
A moving coil galvanometer (M.C.G.) has 10 turns each of length 12cm and breadth 8cm. The coil of M.C.G. carries a current of 125μA and is kept perpendicular to the uniform magnetic field of induction 10
−2
T. The twist constant of phosphor bronze fibre is 12×10
−9
Nm/degree. Calculate the deflection produced.
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