Network Theory Practice Test 5

1. Figure below represents three phases of an alternator. The phase voltage for the star connection among the options given below is?

2. The impedance seen by the source in the circuit is given by __________

3. In a series resonant circuit, V_C = 300 V, V_L = 300 V and V_R = 100 V. What is the value of the source voltage?

4. Determine the power (kW) drawn by the load.

5. A series RLC circuit has R = 10 Ω, |X_L| = 20 Ω and |X_C| = 20 Ω is connected across an AC supply of 200 V_rms. The RMS voltage across the capacitor is ____________

6. In the circuit given below, bulb X uses 48 W when lit, bulb Y uses 22 W when lit and bulb Z uses 14.4 W when lit. The number of additional bulbs in parallel to this circuit, that would be required to below the fuse is _______________

7. In the circuit shown, the voltage source supplies power which is _____________

8. In the circuit given below, the equivalent capacitance is ____________

9. For the circuit given below, what is the value of the Q factor for the inductor?

10. If the resistors of star connected system are Z_R, Z_Y, Z_B then the impedance Z_BR in delta connected system will be?