Resonance is a condition in a series RLC circuit in which the capacitive and inductive reactances are equal in magnitude.

At series resonance, the inductive reactance and capacitive reactance are never equal.

A

True

B

False

In a series RLC circuit, the current is minimum at resonance.

A

True

B

False

In R-L-C series resonant circuit magnitude of resonance frequency can be changed by changing the value of

A

R only

B

L only

C

C only

D

L or C

একটি RLC এসি (AC) সার্কিটে Resonance অবস্থায় Impedance (ইম্পিডেন্স) কত?

A

I2R

B

R2+X2

C

Z=R2+Xc2

D

Z=R

In a series RLC circuit, the larger reactance determines the net reactance of the circuit.

A

True

B

False

Magnitude of current at resonance in R-L-C circuit

A

Depends upon the magnitude of R

B

Depends upon the magnitude of L

C

Depends upon the magnitude of C

D

Depends upon the magnitude of R, Land C

In a parallel RLC circuit, the smaller reactance determines the net reactance of the circuit.

A

True

B

False

A capacitor and a resistor are connected in series to a sine wave generator. The frequency is set so that the capacitive reactance is equal to the resistance and, thus, an equal amount of voltage appears across each component. If the frequency is increased

A

VR > VC

B

VC > VR

C

VR = VC

D

VR and VC = 0

If A.C. voltage is applied to capacitive circuit, the alternating current can flow in the circuit because

A

varying voltage produces the charging and dicharging currents

B

of high peak value

C

charging current can flow

D

discharge current can flow

Which one of the following statements best applies to a series RLC circuit?

A

The voltage waveform for each component always has the same amplitude and phase as the applied voltage

B

The current waveform for each component always has the same amplitude and phase as the applied current

C

All of the above

D

The sum of the current is always less than the applied current

E

None of the above

Resonance is a condition in a series RLC circuit in which the capacitive and inductive reactances are equal in magnitude.

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