ANIMAL BIOTECHNOLOGY CHROMOSOMES QUIZ

Capacitive reactance is more when

Capacitance is less and frequency of supply is less

Capacitance is less and frequency of supply is more

Capacitance is more and frequency of supply is more

Capacitance is more and frequency of supply is less

TRUE ANSWER : ?
YOUR ANSWER : ?

In a R-L-C circuit

All of the listed here

Exchange of power takes place between capacitor and supply line

Power is consumed in resistance and is equal to IR

Exchange of power takes place between inductor and supply line

TRUE ANSWER : ?
YOUR ANSWER : ?

The double energy transient occur in the

R-C circuit

Purely inductive circuit

R-L-C circuit

R-L circuit

TRUE ANSWER : ?
YOUR ANSWER : ?

In a series resonant circuit, the impedance of the circuit is

Zero

Maximum

Minimum

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

An A.C. voltage is impressed across a pure resistance of 3.5 ohms in parallel with a pure inductance of impedance of 3.5 ohms,

None of the listed here

The current through the resistance is less

The current through the resistance is more

Both resistance and inductance carry equal currents

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following statements pertains to resistors only?

Can act as energy storage devices

Connecting them in parallel increases the total value

Can dissipate considerable amount of power

Oppose sudden changes in voltage

TRUE ANSWER : ?
YOUR ANSWER : ?

Power factor of an inductive circuit is usually improved by connecting capacitor to it in

None of the listed here

Series

Both parallel and series

Parallel

TRUE ANSWER : ?
YOUR ANSWER : ?

The phosphors for which of the following pair are 180° out of phase for VL, VC and VR?

VC and VR

VC and VL

None of the listed here

VL and VR

TRUE ANSWER : ?
YOUR ANSWER : ?

The reactance offered by a capacitor to alternating current of frequency 50 Hz is 20 Q. If frequency is increased to 100 Hz, reactance becomes __________ ohms.

2.5

10

15

5

TRUE ANSWER : ?
YOUR ANSWER : ?

In series resonant circuit, increasing inductance to its twice value and reducing capacitance to its half value

Will change the resonance frequency

Will change the maximum value of current at resonance

Will change the impedance at resonance frequency

Will increase the selectivity of the circuit

TRUE ANSWER : ?
YOUR ANSWER : ?

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