ISRO Quiz - 3

In the circuit shown in figure, which one of the following statements is correct? (Assume ideal diodes).

For the circuit shown in figure below, V_B = V_C and β = 50. Then the value of V_B is _________. [V_BE  = 0.7 V].

The set-up in the figure is used to measure resistance R. The ammeter and voltmeter resistance are 0.01 Ω and 2000 Ω, respectively. Their readings are 2 A and 180 V respectively giving a measured resistance of 90 Ω. The percentage error in the measurement is:

Two transformer connected in open delta supplies a 400 kVA balanced load operating at 0.866 (lag).The load voltage is 440 V. What is kW supplied by each transformer?

A proportional band of a PI controller is 40% and the reset time is 0.25sec. The transfer function of the controller is given by

In electrodynamometer-type wattmeters, pressure coil inductance produce error which is

The loop transfer function of unity feedback system is . The gain ‘K’ for the system to be just stable is ________.

The following circuit acts as