AE-JE Foundation EE : Electrical & Electronic Measurements revision Quiz-6

A dc voltmeter has a sensitivity of 1000 Ω/volt. When it measures half full scale in 100V range, the current through the voltmeter will be?

Determine the value of unknown inductance L_x (in mH) and the effective resistance R_X (in Ω) of inductor respectively for the circuit given below, if no current flows through the galvanometer (G).

Which of the following is NOT an advantage of PMMC type instruments?

Which of the following materials when used as the viewing surface of a CRO gives a bluish glow?

Which of the following is the cause of a speed error in induction type energy meter?

Which of the following bridge is most suitable for the measurement of an unknown capacitance?

What is the reading (in kW) of both the wattmeter, when measuring the power of
a three-phase three wire system having
an input of 5 kW and power factor of 0.866?

What will be the deflection (in rad) of moving iron instrument, when the inductance of the moving iron instrument is (20+4θ) μH, where θ is the deflection in radian from zero position and the deflection current is 5 A? Assuming spring constant k = 10 × 10^-6 Nm/rad.

To achieve low PT error, the burden value should be ____________.