Recent questions tagged voltmeter

1 answer 125 views

How range of A.C. ammeter & A.C. voltmeter is extended? Draw suitable diagram.

asked Sep 5, 2018 by Shimroz123
1 answer 26 views

Draw a typical electric circuit including ammeter and voltmeter.

asked Aug 8, 2018 by Quiz
1 answer 205 views

An ac voltmeter using full -wave rectification and having a sinusoidal input has an ac sensitivity equal to  (1) 1.414 times dc sensitivity (2) dc sensitivity (3) 0.9 times dc sensitivity (4) 0.707 times dc sensitivity

asked Apr 30, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 58 views

An unshielded moving iron voltmeter is used to measure the voltage in an AC circuit. The stray DC magnetic field having a component along the axis will be  (1) unaffected (2) decreased (3) increased (4) either decreased or increased depending on the direction of the DC field

asked Apr 29, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 18 views

The operation of a ramp type Digital Voltmeter is based on the principle of (A) Voltage-to-current conversion. (B) Voltage-to-time conversion. (C) Current-to-time conversion. (D) Current-to-frequency conversion.

asked Apr 28, 2018 in Digital Instrumentation by Shimroz123
1 answer 81 views

what is voltmeter ?

asked Aug 6, 2017 in Electrical Engineering by Zeeshan
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