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Measurement and Instrumentation

Measurement and Instrumentation
For measurement of inductance having high value, we should use

Maxwell's bridge
Hay's bridge
Maxwell wein bridge
Any of the listed here

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Measurement and Instrumentation
In a single phase energy meter, braking torque is provided by

Permanent magnet
Fluid friction
None of the listed here
Air friction

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Measurement and Instrumentation
On a simple ohmmeter, the 0 Ω mark is _______ of the scale.

Far right
Far left
None of the listed here
In the middle

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Measurement and Instrumentation
Which of the following cannot be measured by multimeters?

Frequency
Current
Resistance
Voltage

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Measurement and Instrumentation
The total current I = I1 + I2 in a circuit is measured as I1 = 150 ± 1A , I2 = 250 ± 2A, where the limits of error are as standard deviations. I is measured as

 (400 ± 2.24) A
 (400 ± 1.5) A
 (400 ± 3) A
 (400 ± 1) A

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Measurement and Instrumentation
A moving iron ammeter produces a full scale torque of 240 μNm with a deflection of 120° at a current of 10 A. The rate of change of self induction (μH/radian) of the instrument at full scale is

 2.0 μH/radian.
 4.8 μH/radian.
 12.0 μH/radian.
 114.6 μH/radian.

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