1. Kirchhoff's voltage law is related to ?

IR drops

both A and D

junction currents

battery e.m.fs.

Answer: both A and D

Explanation:


2. Millman's theorem yields ?

equivalent voltage source

equivalent voltage or current source

equivalent resistance

equivalent impedance

Answer: equivalent voltage or current source

Explanation:


3. An ideal voltage source has ?

terminal voltage in proportion to current

terminal voltage in proportion to load

zero internal resistance

open circuit voltage equal to the voltage on full load

Answer: zero internal resistance

Explanation:


4. In a R-L-C circuit ?

exchange of power takes place between capacitor and supply line

power is consumed in resistance and is equal to I^2

exchange of power takes place between inductor and supply line

all are correct

Answer: all are correct

Explanation:


5. Capacitive reactance is more when ?

capacitance is more and frequency of supply is less

capacitance is more and frequency of supply is more

capacitance is less and frequency of supply is less

capacitance is less and frequency of supply is more

Answer: capacitance is less and frequency of supply is more

Explanation:


6. The superposition theorem is applicable to ?

linear responses only

linear, non-linear and time variant responses

linear and non-linear resistors only

none of the above

Answer: linear responses only

Explanation:


7. A parallel A.C circuit in resonance will ?

act like a resistor of low value

have current in each section equal to the line current

have high voltage developed across each inductive and capacitive section

have a high impedance

Answer: have a high impedance

Explanation:


8. The purpose of a parallel circuit resonance is to magnify ?

power

frequency

current

voltage

Answer: current

Explanation:


9. The r.m.s. value of sinusoidal A.C. current is equal to its value at an angle of ... degrees ?

45

30

90

60

Answer: 45

Explanation:


10. Kirchhoff's voltage law applies to circuits with ?

linear, non-linear, active and passive elements

linear, non-linear, active, passive, time varying as wells as time-in-variant elements

non-linear elements only

linear elements only

Answer: linear, non-linear, active, passive, time varying as wells as time-in-variant elements

Explanation: