Exam 21: Alternating Current

A series RLC ac circuit has a capacitive reactance of 55 $\Omega$ , and inductive reactance of 25 $\Omega$ , and a resistance of 40 $\Omega$ .What is the phase constant of this circuit?

(Multiple Choice)

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Question 41

A bulb is designed for 100 W at 130 V rms.What is the power dissipated by this bulb if it is used in a 120 V rms circuit?

(Multiple Choice)

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Question 42

A series LR circuit dissipates 60 W.The circuit is powered by a 120 V rms 60 Hz supply.If the current is 2.0 A rms,what is the power factor?

(Multiple Choice)

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Question 43

What is the rms current in a 200 mH inductor attached to a 120 V rms 60.0 Hz source?

(Multiple Choice)

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Question 44

The power dissipated in an RLC series circuit is dependent upon:

(Multiple Choice)

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Question 45

If an AC circuit consists of a 220 mH inductor in series with a 75 k $\Omega$ resistor and an AC generator with rms voltage of 12 V.If the frequency of the generator is 25 kHz,what is the rms voltage drop across the resistor?

(Multiple Choice)

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Question 46

What is the inductive reactance of a 200 mH inductor attached to a 120 V rms 60.0 Hz source?

(Multiple Choice)

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Question 47

If the power factor for a series RLC circuit is 1.00,what is the phase constant?

(Multiple Choice)

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Question 48

A 150 W light bulb is operating on a 120 V rms ac line.What is the rms current in the bulb?

(Multiple Choice)

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Question 49

A series RLC circuit has a resistance of 500 $\Omega$ , and inductance of 20.0 mH,and a capacitance of 2.00 $\mu$ F. The power source provides a voltage of v = (170 sin(377t))V. What is the impedance of this circuit?

(Multiple Choice)

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Question 50

If an AC circuit consists of a 220 mH inductor in series with a 75 k $\Omega$ resistor and an AC generator with rms voltage of 12 V.At what frequency will the rms voltage drop across the resistor be equal to that across the inductor?

(Multiple Choice)

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Question 51

For a capacitor in and ac circuit,how much energy is stored in the capacitor at the instant when current is zero?

(Multiple Choice)

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Question 52

The current in an RLC circuit when driven at resonance depends on

(Multiple Choice)

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Question 53

An RLC series circuit has a 22 $\Omega$ resistor,a 3.0 H inductor,and a capacitor.What capacitance would result in resonance at 60 Hz?

(Multiple Choice)

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Question 54

In a series LRC circuit the rms voltage across the resistor is 80.0 V,across the capacitor is 120 V,and across the inductor is 60.0 V.If 1.50 A rms is flowing in this circuit,what is the average power dissipated?

(Multiple Choice)

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Question 55

An RLC series circuit has a 400 $\Omega$ resistance, a 2.5 mH inductor,and a capacitor.If the circuit is in resonance at 30 kHz and is attached to a 20 mV rms power supply,what is the rms voltage across the inductor?

(Multiple Choice)

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Question 56

The voltage supplied to an ac circuit is given by v = 120 sin(377t).What is the voltage at t = 3.00 $\times$ 10^-3 s?

(Multiple Choice)

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Question 57

A series RLC circuit has a capacitive reactance of 16 $\Omega$ and an inductive reactance of 4.0 $\Omega$ at 30 Hz.What frequency would result in resonance for this circuit?

(Multiple Choice)

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Question 58

What capacitance is needed in series with a 30 $\Omega$ resistor at 1.0 kHz for a total impedance of 45 $\Omega$ ?

(Multiple Choice)

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Question 59

The capacitive reactance of an RLC circuit is 64 $\Omega$ .If the frequency is doubled,what is the new capacitive reactance?

(Multiple Choice)

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Question 60

Showing 41 - 60 of 73

Exam 21: Alternating Current

A series RLC ac circuit has a capacitive reactance of 55 Ω\OmegaΩ , and inductive reactance of 25 Ω\OmegaΩ , and a resistance of 40 Ω\OmegaΩ .What is the phase constant of this circuit?

A bulb is designed for 100 W at 130 V rms.What is the power dissipated by this bulb if it is used in a 120 V rms circuit?

A series LR circuit dissipates 60 W.The circuit is powered by a 120 V rms 60 Hz supply.If the current is 2.0 A rms,what is the power factor?

What is the rms current in a 200 mH inductor attached to a 120 V rms 60.0 Hz source?

The power dissipated in an RLC series circuit is dependent upon:

If an AC circuit consists of a 220 mH inductor in series with a 75 k Ω\OmegaΩ resistor and an AC generator with rms voltage of 12 V.If the frequency of the generator is 25 kHz,what is the rms voltage drop across the resistor?

What is the inductive reactance of a 200 mH inductor attached to a 120 V rms 60.0 Hz source?

If the power factor for a series RLC circuit is 1.00,what is the phase constant?

A 150 W light bulb is operating on a 120 V rms ac line.What is the rms current in the bulb?

A series RLC circuit has a resistance of 500 Ω\OmegaΩ , and inductance of 20.0 mH,and a capacitance of 2.00 μ\muμ F. The power source provides a voltage of v = (170 sin(377t))V. What is the impedance of this circuit?

If an AC circuit consists of a 220 mH inductor in series with a 75 k Ω\OmegaΩ resistor and an AC generator with rms voltage of 12 V.At what frequency will the rms voltage drop across the resistor be equal to that across the inductor?

For a capacitor in and ac circuit,how much energy is stored in the capacitor at the instant when current is zero?

The current in an RLC circuit when driven at resonance depends on

An RLC series circuit has a 22 Ω\OmegaΩ resistor,a 3.0 H inductor,and a capacitor.What capacitance would result in resonance at 60 Hz?

In a series LRC circuit the rms voltage across the resistor is 80.0 V,across the capacitor is 120 V,and across the inductor is 60.0 V.If 1.50 A rms is flowing in this circuit,what is the average power dissipated?

An RLC series circuit has a 400 Ω\OmegaΩ resistance, a 2.5 mH inductor,and a capacitor.If the circuit is in resonance at 30 kHz and is attached to a 20 mV rms power supply,what is the rms voltage across the inductor?

The voltage supplied to an ac circuit is given by v = 120 sin(377t).What is the voltage at t = 3.00 ×\times× 10-3 s?

A series RLC circuit has a capacitive reactance of 16 Ω\OmegaΩ and an inductive reactance of 4.0 Ω\OmegaΩ at 30 Hz.What frequency would result in resonance for this circuit?

What capacitance is needed in series with a 30 Ω\OmegaΩ resistor at 1.0 kHz for a total impedance of 45 Ω\OmegaΩ ?

The capacitive reactance of an RLC circuit is 64 Ω\OmegaΩ .If the frequency is doubled,what is the new capacitive reactance?

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A series RLC ac circuit has a capacitive reactance of 55 $\Omega$ , and inductive reactance of 25 $\Omega$ , and a resistance of 40 $\Omega$ .What is the phase constant of this circuit?

If an AC circuit consists of a 220 mH inductor in series with a 75 k $\Omega$ resistor and an AC generator with rms voltage of 12 V.If the frequency of the generator is 25 kHz,what is the rms voltage drop across the resistor?

A series RLC circuit has a resistance of 500 $\Omega$ , and inductance of 20.0 mH,and a capacitance of 2.00 $\mu$ F. The power source provides a voltage of v = (170 sin(377t))V. What is the impedance of this circuit?

If an AC circuit consists of a 220 mH inductor in series with a 75 k $\Omega$ resistor and an AC generator with rms voltage of 12 V.At what frequency will the rms voltage drop across the resistor be equal to that across the inductor?

An RLC series circuit has a 22 $\Omega$ resistor,a 3.0 H inductor,and a capacitor.What capacitance would result in resonance at 60 Hz?

An RLC series circuit has a 400 $\Omega$ resistance, a 2.5 mH inductor,and a capacitor.If the circuit is in resonance at 30 kHz and is attached to a 20 mV rms power supply,what is the rms voltage across the inductor?

The voltage supplied to an ac circuit is given by v = 120 sin(377t).What is the voltage at t = 3.00 $\times$ 10^-3 s?

A series RLC circuit has a capacitive reactance of 16 $\Omega$ and an inductive reactance of 4.0 $\Omega$ at 30 Hz.What frequency would result in resonance for this circuit?

What capacitance is needed in series with a 30 $\Omega$ resistor at 1.0 kHz for a total impedance of 45 $\Omega$ ?

The capacitive reactance of an RLC circuit is 64 $\Omega$ .If the frequency is doubled,what is the new capacitive reactance?