One single phase wattmeter operating on 230V and 5A for 5 hours makes 1940 revolutions. Meter constant in revolutions is 400. What is the power factor of the land?
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ECE · all questionsMeasurement And Instrumentation
Measurement And Instrumentation
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The spring material used in a spring control device should have the following property.
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Why is a MISC meter not recommended for DC measurement?
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A moving iron ammeter may be compensated for frequency errors by
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Which of the following meters has a linear scale?
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For handling greater currents induction watt-meters are used in conjunction with
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When using ohmmeter, applied voltage is to be disconnected from the circuit because
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A 10MHz CRO has
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A CRO can display
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A galvanometer has
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A megger is usually
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A megger is usually
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Ampere is one of the
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The internal resistance of an ammeter should be
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A rectifier type instrument is connected to 100VDC and is operated in the DC measuring module reads
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An oscilloscope indicates
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Ryall crest voltmeter is used for measurement of
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Direct method is used to measure
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The resistance can be measured most accurately by
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In a ballistic galvanometer, the deflecting torque is proportional to
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