Q.39 In a phasing out test, a voltmeter connected to the winding shows deflection when the supply is given; this indicates that this is _______________.Ans 1. both primary and secondary winding2. secondary winding only3. primary winding only4. tertiary ...
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Q.77 The total inductance of two coupled coils in the ‘series aiding’ and ‘series opposing’ connections are 4 H and 2 H, respectively. The value of mutual inductance will be _________.Ans 1. 0.75 H2. 0.2 H3. 0.5 H4. ...
Q.54 A non-inductive resistor of 50 Ω is connected in series with a coil of inductance 0.25 Henry and of negligible resistance across a 250 V, 50 Hz supply. The net impedance of the circuit is given by ...
Q.68 Which of the following is the application of soft magnetic materials?Ans 1. Permanent magnets2. Speakers3. Electromagnets4. MicrophonesCorrect Ans Provided: 3
Q.80 A 230 V, 3-phase voltage is applied to a balance delta connected 3-phase load of phase impedance (15 + j 20) Ω. What is the power consumed per phase?Ans 1. 3807.6 W2. 2198.3 W3. 1161.6 W4. 1269.6 ...