Question 1

A system of an electron and a neutron has a net charge of

Accepted Answer

A)  +1.6 × 10-19 C. 
B)  -1.6 × 10-19 C. 
C)  3.2 × 10-19 C. 
D)  zero. 
A)  +1.6 × 10-19 C. 
B)  -1.6 × 10-19 C. 
C)  3.2 × 10-19 C. 
D)  zero.

Question 2

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 3

An object that is positively 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 4

The abbreviation of the unit of resistance is

Accepted Answer

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

Question 5

A transformer with 600 turns on the primary coil is used to decrease the voltage from 3000 V to 120 V for home use. How many turns should be in the secondary coil?

Accepted Answer

A)  600 turns 
B)  15000 turns 
C)  24 turns 
D)  3720 turns 
A)  600 turns 
B)  15000 turns 
C)  24 turns 
D)  3720 turns

Question 6

The direction of the magnetic field of a bar magnet is

Accepted Answer

A)  in the direction a compass would point. 
B)  in any direction. 
C)  away from the south pole. 
D)  toward the north pole. 
A)  in the direction a compass would point. 
B)  in any direction. 
C)  away from the south pole. 
D)  toward the north pole.

Question 7

Another name for electric potential difference is ______________.

Accepted Answer

The answer of Another name for electric potential difference is...

Question 8

Three resistors, 10 Ω, 20 Ω, and 30 Ω, are wired in parallel and connected to a 12-V battery. How much current flows in the circuit?

Accepted Answer

The answer of Three resistors, 10 Ω, 20 Ω, and...

Question 9

For an ohmic conductor, current is

Accepted Answer

A)  directly proportional to voltage. 
B)  directly proportional to resistance. 
C)  independent of resistance. 
D)  independent of voltage. 
A)  directly proportional to voltage. 
B)  directly proportional to resistance. 
C)  independent of resistance. 
D)  independent of voltage.

A system of an electron and a neutron has a net charge of

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

An object that is positively charged will

The abbreviation of the unit of resistance is

A transformer with 600 turns on the primary coil is used to decrease the voltage from 3000 V to 120 V for home use. How many turns should be in the secondary coil?

The direction of the magnetic field of a bar magnet is

Another name for electric potential difference is ______________.

Three resistors, 10 Ω, 20 Ω, and 30 Ω, are wired in parallel and connected to a 12-V battery. How much current flows in the circuit?

For an ohmic conductor, current is

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Exam 8: Electricity and Magnetism

A system of an electron and a neutron has a net charge of

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

An object that is positively charged will

The abbreviation of the unit of resistance is

A transformer with 600 turns on the primary coil is used to decrease the voltage from 3000 V to 120 V for home use. How many turns should be in the secondary coil?

The direction of the magnetic field of a bar magnet is

Another name for electric potential difference is ______________.

Three resistors, 10 Ω, 20 Ω, and 30 Ω, are wired in parallel and connected to a 12-V battery. How much current flows in the circuit?

For an ohmic conductor, current is

Measurement

Motion

Force and Motion

Work and Energy

Temperature and Heat

Waves and Sound

Optics and Wave Effects

Atomic Physics

Nuclear Physics

The Chemical Elements

Chemical Bonding

Chemical Reactions

Organic Chemistry

Place and Time

The Solar System

Moons and Small Solar System Bodies

The Universe

The Atmosphere

Atmospheric Effects

Structural G Eology and P Late Tectonics

Minerals, Rocks, and Volcanoes

Surface Processes

Geologic Time

Filters