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# Resonance in AC Circuits Online Exam Quiz

Important questions about Resonance in AC Circuits. Resonance in AC Circuits MCQ questions with answers. Resonance in AC Circuits exam questions and answers for students and interviews.

Options

A : a. 5

B : b. 50

C : c. 100

D : d. 500

Options

A : a. Hz

B : b. kHz

C : c. MHz

D : d. No unit

### What happens to the quality factor when the bandwidth increases?

Options

A : a. Increases

B : b. Decreases

C : c. Remains the same

D : d. Becomes zero

### What happens to the quality factor when resonant frequency increases?

Options

A : a. Increases

B : b. Decreases

C : c. Remains the same

D : d. Becomes zero

### Resonance frequency occurs when __________________

Options

A : a. X?=Xc

B : b. X?>Xc

C : c. X?<Xc

D : d. Cannot be determined

### The current leads the supply voltage in a series RLC circuit has its frequency _________ the resonant frequency.

Options

A : a. Above

B : b. Below

C : c. Equal to

D : d. Cannot be determined

Options

A : a. 0

B : b. 1

C : c. Infinity

D : d. 100

### The current lags the supply voltage in a series RLC circuit has its frequency _________ the resonant frequency.

Options

A : a. Above

B : b. Below

C : c. Equal to

D : d. Cannot be determined

Options

A : a. Q=BW*fr

B : b. Q=BW/fr

C : c. Q=fr/BW

D : d. Q=frĀ²

### Quality factor is also known as _________

Options

A : a. Voltage magnification

B : b. Current magnification

C : c. Resistance magnification

D : d. Impedance magnification

### At resonance condition, the voltage across the capacitor and inductor is _________ the source voltage.

Options

A : a. Greater than

B : b. Less than

C : c. Equal to

D : d. Much less than

Options

A : a. 100V

B : b. 10V

C : c. 1000V

D : d. 0V

Options

A : a. 10

B : b. 20

C : c. 30

D : d. 40

Options

A : a. 10V

B : b. 200V

C : c. 100V

D : d. 90V

Options

A : a. 100V

B : b. 20V

C : c. 2000V

D : d. 0V

Options

A : a. 10

B : b. 20

C : c. 30

D : d. 40

Options

A : a. 10V

B : b. 200V

C : c. 100V

D : d. 90V

### What happens to the voltage across the capacitor when the Q factor increases?

Options

A : a. Increases

B : b. Decreases

C : c. Remains the same

D : d. Becomes zero

### What happens to the voltage across the inductor when the Q factor decreases?

Options

A : a. Increases

B : b. Decreases

C : c. Remains the same

D : d. Becomes zero

### The energy stored in the capacitor is of _________ nature.

Options

A : a. Electrostatic

B : b. Magnetic

C : c. Neither electrostatic nor magnetic

D : d. Either electrostatic or magnetic