The no-load current drawn by transformer is usually what per cent of the full-load current?
A). 0.2 to 0.5 per cent
B). 2 to 5 per cent
C). 12 to 15 per cent
D). 20 to 30 per cent
1. The back e.m.f. of a synchronous motor depends on
2. Direct method is used to measure
3. How many free electrons does a p type semiconductor has?
4. The power factor (PF) indicates how much of the apparent power is true power.
5. On which of the following routine tests are conducted ?
6. An advantage of RC coupling scheme is the ___________
7. A single stage transistor amplifier contains ___________ and associated circuitry
8. Magnitude of current at resonance in R-L-C circuit
9. The voltage at one point in a circuit is always measured relative to another point.
10. If a 3-phase supply is given to the stator and rotor is short circuited rotor will move