01․ In a 3 - φ delta connection, two-wattmeter method is used to measure the power; if the two watt meters read 28.13 kW and 13.31 kW, the power factor of connection will be

02․ In above question, if circuit efficiency is 90 %. What will be output power ?

Output power = efficiency X ( P

_{1}+ P_{2}).03․ Consider the following circuit :
Switch is closed at t = 0
Find i(0

^{+})04․ In question no.3, which of the following is true ?

05․ A 10 Ohm resistor has power rating of 1W. Find the maximum current rating.

I

^{2}R = 1; I = √0.1 = 0.316 A06․ What would be the power given by source V

_{2}?Among two voltage source, only 10 V source will deliver power to 5 V voltage source.

07․ Consider the following circuit.
What is the value of i ?

Voltage source will offer zero resistance path to current. So net current in 1 Ω resistance depends on only voltage source. So current = 5 X i = 5 A.

08․ In above question, power given in the 5 V source is

Source current = 5 - 1 = 4 Amp.
Power given by the 5 V source = 5 X 4 = 20 W.

09․ Total power consumed in the circuit below is 10 W. Find X.

Total power consumed = x

^{2}X 2 + 2^{2}/2 ∴ 10 W = 2x^{2}+ 2 Therefore, x = 2 A.10․ If V

_{out}= 1 V for 1 kHz input then what would be V_{out}for 10 kHz for same input ?<<<5657585960>>>