Quiz

image
Year 2025

September
Week # 1 Quiz 1

Q1. Find the Z-parameter Z21 in following circuit.

Q2. The value of resistor having Red-Red-Red-Gold color band is

Q3. In two wattmeter method used for the measurement of power, if the p.f. is 0.5, then one of the wattmeter will read

Q4. Two watt meters are connected to measure the power in a 3-phase balanced load. Determine the power factor if the two watt meters read 600 Watts each and both positive.

Q5. Find the force between 2C and 1C separated by a distance 1m in air.

Q6. The [y] matrix for the two port network given below is

Q7. A 240 V, 50 Hz sine wave is starting its positive half cycle at t=0. It will achieve its negative maximum value in__________.

Q8. A star circuit has element of resistance 10Ω. The equivalent delta elements will be

Q9. If the number of turns of a solenoid are doubled, its self inductance will be

Q10. Calculate the inductance of a coil that induces 150 V, when a current changes at the rate of 3 A/s?