1. What will be the equivalent inductance of a series combination of five inductors having same value of inductance ?

5L

L/5

5/L

10L

Answer: 5L

Explanation:


2. Determine the potential difference (in V) between the ends of a conductor when the conductor has a conductance of 0.4 Siemens and carrying a current of 8 A ?

10

20

30

50

Answer: 20

Explanation:


3. What will be the value of capacitance (in micro-Farad) of a capacitor when the potential difference between the terminals of the capacitor is 40 V and the charge stored in the capacitor is 8 mC ?

150

180

200

240

Answer: 200

Explanation:


4. Determine the temperature coefficient of resistance of a resistor at 0 degree Celsius, when the resistor has a resistance of 20 ohms at 0 degree Celsius and 40 ohms at 60 degree Celsius ?

0.012

0.013

0.017

0.019

Answer: 0.017

Explanation:


5. A wire of 30 ohms resistance is stretched to double its original length and then cut into two equal parts. These two equal parts are connected in parallel with a battery that draws a current of 2 A. Determine the potential difference (in V) between the terminals of the battery ?

30

60

90

120

Answer: 60

Explanation:


6. Determine the energy (in 3) stored by an 8 H inductor, if the current through the inductor is 4 A ?

80

76

64

58

Answer: 64

Explanation:


7. Which one of the following statement is TRUE about the Ohm‘s law ?

Ohm's law is applicable to the diodes.

Ohm's law is not applicable to diodes.

Ohm's law is applicable to voltage regulators.

Ohm's law is applicable to transistors.

Answer: Ohm's law is not applicable to diodes.

Explanation:


8. What will be the potential difference (in V) between the ends of a resistor of 10 ohms resistance, when the current through the resistor is 3.5 A ?

35

40

45

50

Answer: 35

Explanation:


9. Which one of the following theorem is the converse of Thevenin‘s theorem ?

Superposition theorem

Nillman‘s theorem

Compensation theorem

Norton‘s theorem

Answer: Norton‘s theorem

Explanation:


10. Determine the value of load impedance (in ohms) for transmitting maximum power from the source to the load, when the source impedance of the circuit is 6 + j5 ohms ?

6 - j5

5 - j6

6 + j5

5 + j6

Answer: 6 - j5

Explanation: