List of top Electrical Engineering Questions on Electrical and Electronic Measurements

A digital frequency meter counts 5000 pulses during a gate time of 0.1 s. The measured frequency is

An energy meter makes 600 revolutions per kWh. If it makes 300 revolutions in 30 minutes, then the load power is

Resolution of a \(3\frac{1}{2}\) digit DVM is

A DC potentiometer has a potential gradient of 20 mV/cm. The balancing lengths for a standard cell and an unknown voltage are 75 cm and 120 cm respectively. If the standard cell voltage is 1.50 V, then the unknown voltage is

A PMMC instrument has full-scale deflection current of \(50\ \mu\text{A}\) and coil resistance of \(1\ \text{k}\Omega\). The resistance to be added in series to convert it into 10 V voltmeter is

A moving-iron voltmeter reads correctly on DC. If connected to a 50 Hz sinusoidal AC source whose RMS value equals the DC value, then the reading will be

A current transformer has ratio 500/5. If the burden is 2 VA at rated secondary current, the corresponding burden impedance is

Which of the following bridge is not used for the measurement of capacitance?

The step angle of a 3-\(\phi\) (A, B, C), 6 stator pole, 4 rotor teeth stepper motor if excited sequentially i.e, A, AB, B, BC, C, CA, and so on is:

Form factor of a sine wave is

In a two wattmeter method, if one wattmeter reads negative then