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The scale of moving coil instruments are
1. Linear
2. Non-linear
3. Not uniform
4. None of the above

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Correct Answer - Option 1 : Linear

Concept:

In thermocouple instruments, the deflection is directly proportional to the square of the current. i.e. θ ∝ I2

In moving iron instruments, the deflection is directly proportional to the square of the current. i.e. θ ∝ I2

In hotwire instruments, the deflection is directly proportional to the square of the current. i.e. θ ∝ I2

In moving-coil instruments, the deflection is directly proportional to the current. i.e. θ ∝ I

Application:

Moving coil instruments have a uniform or linear scale.

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