EXAMIANS
To measure 5 volts, if one selects a 0-100 volt range voltmeter which is accurate with in ± 1%, then the error in this measurement may be up to
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The ratio of change in output to the change in the input is called
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In an Anderson bridge, the unknown inductance is measured in terms of
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The meter constant of an energy meter is 1500 rev/kWh, the disc makes 3000 revolution in a given time. The energy consumed is
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For measurement of inductance having high value, we should use
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In which of the transformer is the secondary nearly short circuited under normal operating condition?
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For measurement of mutual inductance we can use
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The coil of a moving iron instrument has a resistance of 500 ohm and inductance of 1 H. It reads 250 V when a 250 V DC is applied. It series resistance is 2000 ohms its reading when fed by 250 V, 50 Hz AC will be
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Which of the following is a variable displacement transducer?
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In a single phase energy meter, braking torque is provided by
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