Description

Predict/Calculate Problem 24.19

A 19.0-uF capacitor is connected to an ac generator with an rms voltage of 116 V and a frequency of 40.0 Hz.

Part A

What is the rms current in the circuit?

Express your answer to three significant figures and include appropriate units.

μΑ

?

Value

Units

Submit

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Predict/Calculate Problem 24.19

Part B

If you wish to increase the rms current, should you add a second capacitor in series or in parallel?

Series

Parallel

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Previous Answers

Correct

Part C

Find the value of the capacitance that should be added to increase the rms current to 1.75 A.

Express your answer to three significant figures and include appropriate units.

O

LE

μΑ

?

Value

Units

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Problem 24.25

く

9 of 30

II Review

A 50.0 Hz generator with an rms voltage of 155 V

is connected in series to a resistor 3.33 k12 and a

capacitor 1.50 uF.

Part A

At what frequency must this circuit be operated for the current to lead the voltage by 17.0° ?

ΤΡΙ ΑΣφ

?

Hz

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Part B

Using the frequency found in part A, find the average power consumed by this circuit.

VO

ΑΣΦ

P=

W

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Problem 24.35 – Enhanced – with Feedback

A 525 12 resistor and a 300 mH inductor are

connected in series with an ac generator with an

rms voltage of 19.0 V and a frequency of 65.0 Hz

You may want to review (Pages 860 – 863).

Part A

What is the rms current in this circuit?

IVALO

?

Irms

mA

=

Submit

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Problem 24.56

Express your answer using two significant figures.

EVO AED

?

Vrms

V

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Part B

What is the reading on a voltmeter when it is connected to points B and C?

Express your answer using two significant figures.

Figure

1 of 1

EVO AE

?

Vrms

=

V

с

R

0000

www

B

D

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Alternative Exercise 24.121

28 of

What is the value of R in this circuit?

An ac generator supplies an rms voltage of 7.50 V

to an RC circuit. At a frequency of 16.1 kHz the

rms current in the circuit is 43.2 mA ; at a

frequency of 26.9 kHz the rms current is 50.9 mA

Express your answer using two significant figures.

V AZO

?

R =

12

Submit

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Part B

What is the value of C in this circuit?

Express your answer using two significant figures.

ΠΙ ΑΣΦ

?

C =

nF

Submit

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Drawida Coadbook

Problem 24.92

29

Part A

An ac generator supplies an rms voltage of 5.00 V

to an RL circuit. At a frequency of 21.0 kHz the

rms current in the circuit is 45.0 mA; at a

frequency of 25.0 kHz the rms current is 40.0

mA.

What is the values of L in this circuit?

VALO

?

L =

=

μΗ

Submit

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Part B

What is the values of R in this circuit?

V AED

?

R=

12

Submit

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