GATE 2022 : Electrical Measurement Quiz 8

A 50µA basic D’Arsonval movement with an internal resistance of 500 kΩ is to be used as a voltmeter. The value of the multiplier resistance required to measure a full-scale voltage range of 0-50 V is

An energy meter makes 100 revolutions of its disc per unit of energy. The number of revolutions made by the disc during one hour when connected across 210V source and drawing a current of 20A at 0.8 p.f. leading is

The screen of a CRT is 60 cm from the centre of the plates. The parallel deflecting plates are of length 2 cm and are 5 mm apart. It has anode voltage of 2400 V. The input is supplied deflecting plates through an amplifier with gain of 20. To get a deflection of 3 cm on screen the input voltage is

What will be the oscillator frequency in MHz for ramp type Digital Voltmeter having pulse count of 10⁴, and ramp voltage fall from 4 V to 0 V in 10 × 10^–3 sec.

Two 100V F.S.D PMMC type dc volt meters having figure of merit of 10kΩ/V and 20kΩ/V are connected in series. The series combination can be used to measure a maximum dc voltage of ____V.