EXAMIANS
The watt hour meter is ______ instrument.
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An electrodynamic meter can be used to measure
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The internal resistance of a milli-ammeter must be very low for
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To the y input of a CRO a signal defined by 10sin100t is applied. To the x input the signal 10cos100t is fed. The gain for both x-channel and y-channel is the same. The screen shows
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The main advantage of Anderson bridge over Maxwell bridge is that
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Which wave has the least form factor?
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In which of the transformer is the secondary nearly short circuited under normal operating condition?
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The time/div and voltage axes of an oscilloscope have been creased. A student connects a 1 KHz, 5 V P-P square wave calibrition pulse to channel-1 of the scope and observes the screen to be as shown in the upper trace of figure. An unknown signal is connected to channel-2 (lower trace) of the scope. If the time/div and V/div on both channels are the same, the amplitude (P-P) and period of the unknown signal are respectively
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Jewels are used in instruments for the purpose of
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A CRO probe has an impedance of 500 kΩ in parallel with a capacitance of 10 pF. The probe is used to measure the voltage between P and Q as shown in figure. The measured voltage will be
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