Free Printable RLC circuit

1.

The formula to find X_Cis

a)

$\frac{1}{2\pi fC}$

b)

$2\pi fC$

c)

$\frac{1}{2}\pi fC$

d)

$\omega fC$

2.

If the frequency was increased toward resonance in the circuit shown, complete the following statements by choosing either increase, decrease or stay the same.

The value for total current would?

a)

Increase

b)

Decrease

c)

Stay the same

3.

In a parallel RLC circuit, at resonance, the admittance is:

a)

Maximum

b)

Minimum

c)

Zero

d)

Infinite

4.

What is the power factor of a purely resistive circuit?

a)

0

b)

0.5

c)

1

d)

-1

5.

In which type of circuit do DC rules and equations directly apply to AC circuits?

a)

Circuits containing inductance and capacitance only

b)

Circuits containing resistance alone

c)

Circuits with impedance

6.

What does an RLC circuit consist of?

a)

Resistor, capacitor, and inductor

b)

Resistor and capacitor only

c)

Resistor and inductor only

d)

Inductor and capacitor only

7.

In an RLC circuit, what is the unit of impedance?

a)

Ohm

b)

Farad

c)

Henry

d)

Ampere

8.

At resonance, the impedance of a series RLC circuit is:

a)

Zero

b)

Equal to resistance

c)

Infinite

d)

Equal to reactance

9.

What happens to the current in a series RLC circuit at resonance?

a)

It becomes maximum

b)

It becomes minimum

c)

It is zero

d)

It is constant

10.

In a parallel RLC circuit, at resonance, the circuit behaves as:

a)

A purely inductive circuit

b)

A purely resistive circuit

c)

A purely capacitive circuit

d)

An open circuit

11.

At 45 Hz, a series ac circuit with a resistor and an inductive reactance has a total voltage of 68 V. If the voltage across the resistor is 26 V, calculate the voltage across the inductive reactance.

4 lines

12.

Calculate the power factor of a lagging inductive series ac circuit with a wattmeter reading of 245 W, an ammeter reading of 1.6 A, and a voltmeter reading of 230 V.

4 lines

13.

What is the total impedance in a series RLC circuit?

4 lines

14.

In an RLC circuit, if the inductive reactance equals the capacitive reactance, the circuit is:

a)

Overdamped

b)

Under resonance

c)

In resonance

d)

Oscillating

15.

The inductive reactance is given by:

4 lines

16.

When a particular inductor is connected to a source of sinusoidal varying voltage with constant amplitude and a frequency of 60.0 Hz, the rms current is 3.0 A. What is the rms current if the source frequency is doubled?

a)

1.5A

b)

3.0 A

c)

4.2 A

d)

6.0 A

17.

Given the circuit parameters

What is the Current through the inductor (IL)?

a)

6 amp

b)

3 amp

c)

4 amp

d)

12 amp

18.

7.The formula for quality factor is

a)

voltage across R / applied voltage

b)

voltage across RLC / applied voltage

c)

voltage across L or C / applied voltage

d)

1/applied voltage

19.

6.The electrical resonance is only possible for ______ circuit.

a)

RL

b)

RLC

c)

LR

d)

LC

20.

5. (a) is used in tuning of the RADIO or TV channels.

21.

3.The resonant angular frequency is given by _______

a)

1/√LC

b)

1/2π√LC

c)

LC

d)

None of the ablove

22.

In a purely inductive circuit _____ leads ________ by 90 degree

a)

current, voltage

b)

voltage , current

c)

indcutor, capacitor

d)

currernt , resistance

23.

Un circuito RLC serie tiene una corriente de 2A, una resistencia de 10Ω, una reactancia inductiva de 50Ω y una reactancia capacitiva de 40Ω. Encontrar voltaje total.

a)

28,28V

b)

20,28V

c)

30,28V

24.

Un circuito RLC serie tiene una corriente de 2A, una resistencia de 10Ω, una reactancia inductiva de 50Ω y una reactancia capacitiva de 40Ω. Encontrar Impedancia total.

a)

14,14Ω

b)

19,14Ω

c)

12,14Ω

25.

Un circuito RLC serie tiene una corriente de 2A, una resistencia de 10Ω, una reactancia inductiva de 50Ω y una reactancia capacitiva de 40Ω. Encontrar Angulo de desfasamiento.

a)

45°

b)

47°

c)

42°

26.

What kind of circuit is this?

a)

series

b)

parallel

27.

water is a______?

a)

conductor

b)

insulator

28.

wood is a _____?

a)

conductor

b)

insulator

29.

Write an equation that solves for the impedance, $Z_{total}$ , of this series circuit.

a)

$Z_{total}=\sqrt{R^2+X^2}$

b)

$Z_{total}=\sqrt{R^2-X^2}$

c)

$Z_{total_{ }}=R^2+X^2$

d)

$Z_{total}=R^2-X^2$

30.

The voltage and current will be in phase if we connected a

(a)

31.

The unit of capacitor is:

(a)

32.

What should RLC Circuit contains ??? (Choose all correct answers)

a)

Resistor

b)

Capacitor

c)

Inductor

d)

Transistor

33.

Which of the following is considered as Active Component ???

a)

Capacitor

b)

Inductor

c)

Resistor

d)

Diode

34.

Which of the following is considered as Passive Component ???

a)

Capacitor

b)

Transistor

c)

SCR

d)

Diode

35.

Select the correct combination of quantity (equation) symbol and unit:

a)

W, Watt

b)

P, VAr

c)

X, Ohm

d)

Q, Watt

36.

Select the correct sentence:

a)

Active power can only be developed in a pure inductance.

b)

Reactive power is developed in a capacitor.

c)

Apparent power increases as the power factor increases.

d)

Power factor is apparent power divided by active power.

37.

Select the correct phrase:

a)

In a capacitive circuit the voltage leads the current.

b)

In an inductive circuit the current lags the voltage.

c)

In a resistive circuit, the current and voltage are out of phase.

d)

In a capacitive circuit the current lags the voltage.

38.

Which of the transposed reactance formulae is incorrect?

a)

b)

c)

d)

39.

Calculate the total impedance if C=50nF and R=2000 Ohm.

a)

106200 Ohm

b)

5175 Ohm

c)

3250 Ohm

d)

21000 Ohm

40.

Write an equation that solves for the impedance, $Z_{total}$ , of this series circuit.

a)

$Z_{total}=\sqrt{R^2+X^2}$

b)

$Z_{total}=\sqrt{R^2-X^2}$

c)

$Z_{total_{ }}=R^2+X^2$

d)

$Z_{total}=R^2-X^2$

41.

In a series circuit voltage must be

a)

constant for each element

b)

cosine graph in all 3 components

c)

different for each element

d)

sine graph in all 3 components

42.

In a series circuit current must be

a)

constant for each element

b)

cosine graph in all 3 components

c)

different for each element

43.

This phasor diagram for:

a)

R

b)

L

c)

C

d)

X

44.

This phasor diagram for:

a)

R

b)

L

c)

C

d)

X

45.

This phasor diagram for:

a)

R

b)

L

c)

C

d)

X

RLC circuit

Total questions: 45

Worksheet time: 37mins

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