Resistors in an AC Circuit

Resistors in an AC Circuit

12th Grade

5 Qs

quiz-placeholder

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Resistors in an AC Circuit

Resistors in an AC Circuit

Assessment

Quiz

Physics

12th Grade

Easy

Used 4+ times

FREE Resource

5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An alternating current source has an output voltage given by the expression:

∆𝑉 = 200 𝑠𝑖𝑛 ( 20𝜋𝑡 ) where ∆𝑉 is in volts.

What is the source frequency and its maximum current when it is connected to a 50 𝛺 resistor?

f = 10 Hz

Max Current = 2.8A

f = 10 Hz

Max Current = 3.0A

f = 10 Hz

Max Current = 4.0A

f = 20𝜋 Hz

Max Current = 4.0A

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The voltage output of an AC source is given by the expression ∆𝑉 = 200 sin(4𝜋)𝑡, where ∆𝑉 is in volts.

What is the 𝑟𝑚𝑠 current in the circuit when this source is connected to a 100 𝛺 resistor?

300A

2.82A

2.00A

1.41A

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The voltage output of an AC source is given by the expression ∆𝑉 = 200 sin (4𝜋)𝑡, where ∆𝑉 is in volts.

What is the frequency of the source?

0.25 Hz

0.50 Hz

1.0 Hz

2.0 Hz

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A resistor is connected to an AC power supply. The current in this circuit ____.

Is in phase with the voltage

Leads the voltage by 90°

Legs the voltage by 90°

Leads the voltage by 45°

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In an AC series circuit, the current in a pure resistor differs in phase with the applied voltage by what angle?

45°

90°

180°