Question 1

-Given the circuit in Figure what is the value of the resistor?

Accepted Answer

A)  120 Ω 
B)  12 kΩ 
C)  120 kΩ 
D)  12 Ω 
A)  120 Ω 
B)  12 kΩ 
C)  120 kΩ 
D)  12 Ω C

Question 2

Figure 3-7
-Given the circuit in Figure 3-7, what is the battery voltage?

Accepted Answer

A)  110 V 
B)  110 µV 
C)  22.7 V 
D)  110 mV 
A)  110 V 
B)  110 µV 
C)  22.7 V 
D)  110 mV A

Question 3

-Given the circuit in Figure , what is the value of the resistor?

Accepted Answer

A)  1 MΩ 
B)  100 kΩ 
C)  1 Ω 
D)  1 kΩ 
A)  1 MΩ 
B)  100 kΩ 
C)  1 Ω 
D)  1 kΩ A

Question 4

A mathematical relationship between current, voltage, and resistance was determined by George Ohm?

Accepted Answer

A) True 
 B)False

Question 5

$8$

-If an electric circuit draws 1 A at 50 V, how much current will it draw if the voltage is increased to 75 V?

Accepted Answer

A)  M15 V 
B)  15 µA 
C)  15 mA 
D)  1.5 A 
A)  M15 V 
B)  15 µA 
C)  15 mA 
D)  1.5 A

Question 6

Which of the following is a form of Ohm's Law?

Accepted Answer

A)  $V=\frac{R}{I}$ 
B)  $I=\frac{R}{V}$ 
C)  $\mathrm{I}=\mathrm{V} \times \mathrm{R}$ 
D)  $R=\frac{V}{I}$ 
A)  $V=\frac{R}{I}$ 
B)  $I=\frac{R}{V}$ 
C)  $\mathrm{I}=\mathrm{V} \times \mathrm{R}$ 
D)  $R=\frac{V}{I}$

Question 7

How many ohms of resistance allows a current of 720 µA to flow, when 3.6 kV is applied?

Accepted Answer

A)  5 MΩ 
B)  200 kΩ 
C)  5 kΩ 
D)  200 nΩ 
A)  5 MΩ 
B)  200 kΩ 
C)  5 kΩ 
D)  200 nΩ

Question 8

When circuit voltage increases and resistance decreases at the same rate, current will:

Accepted Answer

A)  double 
B)  increase 
C)  decrease by half 
D)  not enough information 
A)  double 
B)  increase 
C)  decrease by half 
D)  not enough information

Question 9

Increasing voltage while maintaining the same resistance will cause current to decrease.

Accepted Answer

A) True 
 B)False

Question 10

How is Ohm's law expressed in words?

Accepted Answer

A)  The current is linearly proportional to the voltage and inversely proportional to the resistance. 
B)  The voltage is linearly proportional to the current and inversely proportional to the resistance. 
C)  The voltage is linearly proportional to the resistance and inversely proportional to the current. 
D)  The current is linearly proportional to the resistance and inversely proportional to the voltage. 
A)  The current is linearly proportional to the voltage and inversely proportional to the resistance. 
B)  The voltage is linearly proportional to the current and inversely proportional to the resistance. 
C)  The voltage is linearly proportional to the resistance and inversely proportional to the current. 
D)  The current is linearly proportional to the resistance and inversely proportional to the voltage.

Question 11

Figure 3-4
-To obtain voltage in volts, you must express the value of I in _ _ and the value of R in .

Accepted Answer

A)  Milliamperes, Ohms 
B)  Amperes, Ohms 
C)  Milliamperes, Megohms 
D)  Amperes, Kilo-Ohms 
A)  Milliamperes, Ohms 
B)  Amperes, Ohms 
C)  Milliamperes, Megohms 
D)  Amperes, Kilo-Ohms

Question 12

Figure 3-6
-Given the circuit in Figure 3-6, What is the voltage across the resistor?

Accepted Answer

A)  50 mV 
B)  50 V 
C)  2.0 mV 
D)  2.0 V 
A)  50 mV 
B)  50 V 
C)  2.0 mV 
D)  2.0 V

Question 13

Figure 3-8
-To obtain the resistance in Ohms, you must express the value of I in _ _ and the value of V in .

Accepted Answer

A)  Amperes, Millivolts 
B)  Amperes, Volts 
C)  Milliamperes, Volts 
D)  Microamperes, Millivolts 
A)  Amperes, Millivolts 
B)  Amperes, Volts 
C)  Milliamperes, Volts 
D)  Microamperes, Millivolts

Question 14

The voltage across a circuit resistance is inversely related to the current through that resistance.

Accepted Answer

A) True 
 B)False

Question 15

-Given the circuit in Figure , what resistance is required to draw the specified current?

Accepted Answer

A)  11.4 Ω 
B)  5.7 kΩ 
C)  5.7 Ω 
D)  25.2 Ω 
A)  11.4 Ω 
B)  5.7 kΩ 
C)  5.7 Ω 
D)  25.2 Ω

Question 16

-Given the circuit in Figure  what resistance is required to draw the specified current?

Accepted Answer

A)  12 kΩ 
B)  120 Ω 
C)  120 kΩ 
D)  11.2 kΩ 
A)  12 kΩ 
B)  120 Ω 
C)  120 kΩ 
D)  11.2 kΩ

Question 17

What EMF would cause 20 A of current to flow through a 500 Ω resistor?

Accepted Answer

A)  1 kV 
B)  0.04 V 
C)  10 kV 
D)  2.5 V 
A)  1 kV 
B)  0.04 V 
C)  10 kV 
D)  2.5 V

Question 18

What electromotive force would cause 20 A of current to flow through a 500 ohm resistor?

Accepted Answer

A)  10 kV 
B)  2.5 V 
C)  1 kV 
D)  25 V 
A)  10 kV 
B)  2.5 V 
C)  1 kV 
D)  25 V

Question 19

-If the voltage across a resistor has tripled, the current will:

Accepted Answer

A)  stay the same 
B)  triple 
C)  decrease 
D)  double 
A)  stay the same 
B)  triple 
C)  decrease 
D)  double

Question 20

If an ammeter in a circuit is reading 20 mA and the applied voltage is 25 V, what would the value of the load resistor be?

Accepted Answer

A)  12.5 kΩ 
B)  125 Ω 
C)  12.5 Ω 
D)  1.25 kΩ 
A)  12.5 kΩ 
B)  125 Ω 
C)  12.5 Ω 
D)  1.25 kΩ

Exam 3: Ohms Law

-Given the circuit in Figure what is the value of the resistor?

Figure 3-7 -Given the circuit in Figure 3-7, what is the battery voltage?

-Given the circuit in Figure , what is the value of the resistor?

A mathematical relationship between current, voltage, and resistance was determined by George Ohm?

888 -If an electric circuit draws 1 A at 50 V, how much current will it draw if the voltage is increased to 75 V?

Which of the following is a form of Ohm's Law?

How many ohms of resistance allows a current of 720 µA to flow, when 3.6 kV is applied?

When circuit voltage increases and resistance decreases at the same rate, current will:

Increasing voltage while maintaining the same resistance will cause current to decrease.

How is Ohm's law expressed in words?

Figure 3-4 -To obtain voltage in volts, you must express the value of I in _ _ and the value of R in .

Figure 3-6 -Given the circuit in Figure 3-6, What is the voltage across the resistor?

Figure 3-8 -To obtain the resistance in Ohms, you must express the value of I in _ _ and the value of V in .

The voltage across a circuit resistance is inversely related to the current through that resistance.

-Given the circuit in Figure , what resistance is required to draw the specified current?

-Given the circuit in Figure what resistance is required to draw the specified current?

What EMF would cause 20 A of current to flow through a 500 Ω resistor?

What electromotive force would cause 20 A of current to flow through a 500 ohm resistor?

-If the voltage across a resistor has tripled, the current will:

If an ammeter in a circuit is reading 20 mA and the applied voltage is 25 V, what would the value of the load resistor be?

Quantities and Units

Voltage, Current, and Resistance

Energy and Power

Series Circuits

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

$8$ -If an electric circuit draws 1 A at 50 V, how much current will it draw if the voltage is increased to 75 V?