RC CIRCUITS QUIZ

Pure metal generally have

high conductivity and low temperature coefficient.

high conductivity and large temperature coefficient.

low conductivity and zero temperature coefficient.

low conductivity and high temperature coefficient.

TRUE ANSWER : ?
YOUR ANSWER : ?

The fixed circular paths around the nucleus are called

orbitals.

nucleus.

orbits.

mesons.

TRUE ANSWER : ?
YOUR ANSWER : ?

Capacitor does not allow the sudden change of

power

voltage

current

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

A coil of negligible resistance has an induction of 100 mH. The current passing through the coil changes from 2 A to 4 A at a uniform rate in 0.1 sec the voltage across the coil during this time would be __________ V.

2

36

50

8

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following has no units?

Magnetic susceptibility

Moment of a magnet

Permeability

Permittivity

TRUE ANSWER : ?
YOUR ANSWER : ?

A branch of a network is said to be passive when it contains

battery.

voltage source.

voltmeter.

current source.

TRUE ANSWER : ?
YOUR ANSWER : ?

The breakdown voltage for paper capacitor is usually

200 to 1600 volts.

20 to 60 volts.

more than 10000 volts.

2000 to 3000 volts.

TRUE ANSWER : ?
YOUR ANSWER : ?

In the above question find the angle between voltage and current?

90.

30.

60.

54.74.

TRUE ANSWER : ?
YOUR ANSWER : ?

The ratio of the resistance of a 200 W, 230 V lamp to that of a 100 W, 115 V lamp will be

2.

4.

0.5.

0.25.

TRUE ANSWER : ?
YOUR ANSWER : ?

A balanced delta connected load has an impedance of 9∠30o Ω per phase. What is the impedance per phase of its equivalent star?

None of these

30∠30o Ω.

3∠30o Ω.

27∠30o Ω

TRUE ANSWER : ?
YOUR ANSWER : ?

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