Question 1

Two oppositely charged particles ______________ one another.

Accepted Answer

The answer of Two oppositely charged particles ______________ one another....

Question 2

If a positively charged object is brought near a suspended,positively charged object,the suspended object will be

Accepted Answer

A)  repelled. 
B)  charged more. 
C)  discharged. 
D)  attracted. 
A)  repelled. 
B)  charged more. 
C)  discharged. 
D)  attracted.

Question 3

An object may be electrically neutral,but regions may be charged by ______________.

Accepted Answer

The answer of An object may be electrically neutral,but regions...

Question 4

Magnetic fields can deflect ______________ charges.

Accepted Answer

The answer of Magnetic fields can deflect ______________ charges....

Question 5

The expression V = IR is called ______________.

Accepted Answer

The answer of The expression V = IR is called...

Question 6

If two protons are moved 3 times closer together,the electrical force between them is what factor of the original force?

Accepted Answer

The answer of If two protons are moved 3 times...

Question 7

If a positively charged object is brought near a suspended,negatively charged object,the suspended object will be

Accepted Answer

A)  repelled. 
B)  charged more. 
C)  discharged. 
D)  attracted. 
A)  repelled. 
B)  charged more. 
C)  discharged. 
D)  attracted.

Question 8

If two protons are moved 3 times farther apart,the electrical force between them is what factor of the original force?

Accepted Answer

The answer of If two protons are moved 3 times...

Question 9

Three resistors,80 Ω,10 Ω,and 70 Ω,are wired in parallel and connected to a 120-V battery.How much current flows in this circuit?

Accepted Answer

A)  0.75 Α 
B)  15 Α 
C)  950 Α 
D)  0.0021 Α 
A)  0.75 Α 
B)  15 Α 
C)  950 Α 
D)  0.0021 Α

Question 10

The voltage for typical home appliances is ______________.

Accepted Answer

The answer of The voltage for typical home appliances is...

Question 11

Three resistors,30 Ω,20 Ω,and 60 Ω,are wired in series and connected to a 120-V battery.What is the equivalent resistance for this circuit?

Accepted Answer

A)  110 Ω 
B)  10 Ω 
C)  0.1 Ω 
D)  36000 Ω 
A)  110 Ω 
B)  10 Ω 
C)  0.1 Ω 
D)  36000 Ω

Question 12

A(n)______________ is an elementary particle with a charge of +1.6 × 10-19 coulomb.

Accepted Answer

Question 13

Consider a wire at rest in a magnetic field as shown in the following figure.What will happen to the wire?

Accepted Answer

A)  A current will flow in the wire. 
B)  The wire will be pushed perpendicular to the plane of the magnetic field. 
C)  The wire will be pushed toward the north pole. 
D)  Nothing will happen. 
A)  A current will flow in the wire. 
B)  The wire will be pushed perpendicular to the plane of the magnetic field. 
C)  The wire will be pushed toward the north pole. 
D)  Nothing will happen.

Question 14

Three resistors,20 Ω,10 Ω,and 80 Ω,are wired in series and connected to a 120-V battery.How much current flows in this circuit?

Accepted Answer

A)  1.1 Α 
B)  20 Α 
C)  740 Α 
D)  0.0075 Α 
A)  1.1 Α 
B)  20 Α 
C)  740 Α 
D)  0.0075 Α

Question 15

An object that is negatively charged will

Accepted Answer

A)  repel a rubber rod stroked with fur. 
B)  repel a glass rod stroked with silk. 
C)  be polarized. 
D)  none of these 
A)  repel a rubber rod stroked with fur. 
B)  repel a glass rod stroked with silk. 
C)  be polarized. 
D)  none of these

Question 16

Which of the following would be the least conductive?

Accepted Answer

A)  Copper 
B)  Salt water 
C)  Glass 
D)  Mercury 
A)  Copper 
B)  Salt water 
C)  Glass 
D)  Mercury

Question 17

A current of 6.0 A flows through a resistance of 50 ?.How much power is dissipated?

Accepted Answer

The answer of A current of 6.0 A flows through...

Question 18

If a negatively charged object is brought near a suspended,positively charged object,the suspended object will be

Accepted Answer

A)  repelled. 
B)  charged more. 
C)  discharged. 
D)  attracted. 
A)  repelled. 
B)  charged more. 
C)  discharged. 
D)  attracted.

Question 19

An object that is negatively charged will

Accepted Answer

A)  attract a rubber rod stroked with fur. 
B)  attract a glass rod stroked with silk. 
C)  be polarized. 
D)  none of these 
A)  attract a rubber rod stroked with fur. 
B)  attract a glass rod stroked with silk. 
C)  be polarized. 
D)  none of these

Question 20

The direction of the magnetic field of a bar magnet is

Accepted Answer

A)  in the direction opposite to that in which a compass would point. 
B)  in any direction. 
C)  away from the south pole. 
D)  away from the north pole. 
A)  in the direction opposite to that in which a compass would point. 
B)  in any direction. 
C)  away from the south pole. 
D)  away from the north pole.

Exam 8: Electricity and Magnetism

Two oppositely charged particles ______________ one another.

If a positively charged object is brought near a suspended,positively charged object,the suspended object will be

An object may be electrically neutral,but regions may be charged by ______________.

Magnetic fields can deflect ______________ charges.

The expression V = IR is called ______________.

If two protons are moved 3 times closer together,the electrical force between them is what factor of the original force?

If a positively charged object is brought near a suspended,negatively charged object,the suspended object will be

If two protons are moved 3 times farther apart,the electrical force between them is what factor of the original force?

Three resistors,80 Ω,10 Ω,and 70 Ω,are wired in parallel and connected to a 120-V battery.How much current flows in this circuit?

The voltage for typical home appliances is ______________.

Three resistors,30 Ω,20 Ω,and 60 Ω,are wired in series and connected to a 120-V battery.What is the equivalent resistance for this circuit?

A(n)______________ is an elementary particle with a charge of +1.6 × 10-19 coulomb.

Consider a wire at rest in a magnetic field as shown in the following figure.What will happen to the wire?

Three resistors,20 Ω,10 Ω,and 80 Ω,are wired in series and connected to a 120-V battery.How much current flows in this circuit?

An object that is negatively charged will

Which of the following would be the least conductive?

A current of 6.0 A flows through a resistance of 50 ?.How much power is dissipated?

If a negatively charged object is brought near a suspended,positively charged object,the suspended object will be

An object that is negatively charged will

The direction of the magnetic field of a bar magnet is

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A(n)______________ is an elementary particle with a charge of +1.6 × 10^-19 coulomb.