Question 1

If a   resistor,   resistor and   resistor are connected in parallel, the total resistance equals ________.

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 2

IT equals 0.1 mA in a 3-branch parallel circuit.   ?

Accepted Answer

A) 0.029 mA 
B) 0.071 mA 
C) 0.213 mA 
D) 0.142 mA 
A) 0.029 mA 
B) 0.071 mA 
C) 0.213 mA 
D) 0.142 mA

Question 3

If   mA in a two branch parallel circuit,   mA.

Accepted Answer

A) True 
 B)False

Question 4

in a parallel circuit.

Accepted Answer

A) True 
 B)False

Question 5

in a two-branch parallel circuit. What is the value of   ?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 6

If one resistor opens in a parallel circuit, the total circuit resistance ________ and the total circuit current ________.

Accepted Answer

A) decreases, increases 
B) decreases, decreases 
C) increases, increases 
D) increases, decreases 
A) decreases, increases 
B) decreases, decreases 
C) increases, increases 
D) increases, decreases

Question 7

The current through any branch of a parallel circuit ________.

Accepted Answer

A) is directly proportional to the branch resistance 
B) depends on the power rating of the resistor 
C) depends only on the circuit voltage 
D) is inversely proportional to the branch resistance 
A) is directly proportional to the branch resistance 
B) depends on the power rating of the resistor 
C) depends only on the circuit voltage 
D) is inversely proportional to the branch resistance

Question 8

Accurate troubleshooting of a parallel circuit cannot be performed with a voltmeter.

Accepted Answer

A) True 
 B)False

Question 9

-Refer to Figure 5-1. What is the power dissipation of R3?

Accepted Answer

A) 11.4 mW 
B) 284 mW 
C) 25 mW 
D) 568 mW 
A) 11.4 mW 
B) 284 mW 
C) 25 mW 
D) 568 mW

Question 10

If three equal resistors are connected in parallel across 12 V, each resistor drops 4 V.

Accepted Answer

A) True 
 B)False

Question 11

If three 75 W lamps are connected in parallel across a 125 V source, IT equals ________.

Accepted Answer

A) 1.8 A 
B) 180 mA 
C) 18 A 
D) 18 mA 
A) 1.8 A 
B) 180 mA 
C) 18 A 
D) 18 mA

Question 12

If one branch of a parallel circuit shorts, the total resistance decreases.

Accepted Answer

A) True 
 B)False

Question 13

-Refer to Figure 5-1. The voltage across R2 is 0 V. What is most likely the problem?

Accepted Answer

A) R2 open 
B) fuse open 
C) R1 open 
D) none of the above 
A) R2 open 
B) fuse open 
C) R1 open 
D) none of the above

Question 14

In a parallel circuit, total power   is calculated as:

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 15

If three   resistors are connected in parallel across a 10 V source,   equals ________.

Accepted Answer

A) 22.6 m W 
B) 4.5 m W 
C) 13.6 m W 
D) 18.1 m W 
A) 22.6 m W 
B) 4.5 m W 
C) 13.6 m W 
D) 18.1 m W

Question 16

-Refer to Figure 5-1. The total current for this circuit is measured and the ammeter reads 57.8 mA. What is the problem, if any?

Accepted Answer

A) R3 open 
B) R1 open 
C) R2 open 
D) This is normal. 
A) R3 open 
B) R1 open 
C) R2 open 
D) This is normal.

Question 17

The total resistance of four resistors in parallel is always less than the smallest resistance.

Accepted Answer

A) True 
 B)False

Question 18

If the   in a two-branch parallel circuit, what is the value of   ?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 19

Total power for a parallel circuit can be determined by the same method as a series circuit.

Accepted Answer

A) True 
 B)False

Question 20

In a three-resistor parallel circuit,   then what is the value of

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Exam 5: Series Circuits

If a resistor, resistor and resistor are connected in parallel, the total resistance equals ________.

IT equals 0.1 mA in a 3-branch parallel circuit. ?

If mA in a two branch parallel circuit, mA.

in a parallel circuit.

in a two-branch parallel circuit. What is the value of ?

If one resistor opens in a parallel circuit, the total circuit resistance ________ and the total circuit current ________.

The current through any branch of a parallel circuit ________.

Accurate troubleshooting of a parallel circuit cannot be performed with a voltmeter.

-Refer to Figure 5-1. What is the power dissipation of R3?

If three equal resistors are connected in parallel across 12 V, each resistor drops 4 V.

If three 75 W lamps are connected in parallel across a 125 V source, IT equals ________.

If one branch of a parallel circuit shorts, the total resistance decreases.

-Refer to Figure 5-1. The voltage across R2 is 0 V. What is most likely the problem?

In a parallel circuit, total power is calculated as:

If three resistors are connected in parallel across a 10 V source, equals ________.

-Refer to Figure 5-1. The total current for this circuit is measured and the ammeter reads 57.8 mA. What is the problem, if any?

The total resistance of four resistors in parallel is always less than the smallest resistance.

If the in a two-branch parallel circuit, what is the value of ?

Total power for a parallel circuit can be determined by the same method as a series circuit.

In a three-resistor parallel circuit, then what is the value of

Quantities and Units

Voltage, Current, and Resistance

Ohms Law

Energy and Power

Parallel Circuits

Series-Parallel Circuits

Circuit Theorems and Conversions

Branch, Loop, and Node Analyses

Magnetism and Electromagnetism

Introduction to Alternating Current and Voltage

Capacitors

Inductors

Transformers

RC Circuits

RL Circuits

RlC Circuits and Resonance

Passive Filters

Circuit Theorems in Ac Analysis

Time Response of Reactive Circuits

Three-Phase Systems in Power Applications

Filters

If one resistor opens in a parallel circuit, the total circuit resistance and the total circuit current .