AP Physics 2 : Electricity and Magnetism
Study concepts, example questions & explanations for AP Physics 2
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Example Questions
Example Question #757 : Ap Physics 2
Charge 
Charge 
The distance between their centers, 
What is the magnitude of the force on 
None of these
Using the electric field equation:
Where 
Convert 
Magnitude is equivalent to absolute value:
Example Question #3 : Electric Force Between Point Charges
Charge 
Charge 
The distance between their centers, 
What is the magnitude of the force on 
None of these
Use Coulomb's law:
Where
Convert 
Magnitude is equivalent to absolute value:
Example Question #2 : Electric Force Between Point Charges
Charge 
Charge 
The distance between their centers, 
Determine the magnitude of the electric force on 
None of these
Use Coulomb's law:
Where
Convert
Magnitude is equivalent to absolute value:
Example Question #3 : Electric Force Between Point Charges
Charge 
Charge 
The distance between their centers, 
What is the magnitude of the force on 
None of these
Use Coulomb's law:
Where
Convert
Magnitude is equivalent to absolute value:
Example Question #111 : Electricity And Magnetism
Charge 
Charge 
The distance between their centers, 
What is the magnitude of the force on 
None of these
Using Coulomb's law:
Where
Convert
Magnitude is equivalent to absolute value:
Example Question #12 : Electric Force Between Point Charges
Charge 
Charge 
The distance between their centers, 
What is the magnitude of the force on 
None of these
Using Coulomb's law:
Where
Convert
Magnitude is equivalent to absolute value:
Example Question #111 : Electricity And Magnetism
A point charge of Q sits at rest next to another charge of 3Q at a distance of R away. How does the force on Q from 3Q compare with the force on 3Q from Q?
The forces are equal
The force on the 3Q charge is two times larger
The force on the Q charge is two times larger
The force on the Q charge is four times larger
The forces are equal
Newton's third law states that any force interactions between two bodies must be equal. This is not so simple when another body is introduced. However, with two bodies, any force that acts on the other will have an equal and opposite reaction force.
Example Question #112 : Electricity And Magnetism
A point charge of Q and speed v heads towards another charge of 3Q. Assume the charges are relatively close to one another How does the force on Q from 3Q compare with the force on 3Q from Q?
The force on the 3Q charge is four times as large
The forces are equal
The force on the Q charge is twice as large
The force on the 3Q charge is one-fourth as large
The forces are equal
Newton's third law states that any force interactions between two bodies must be equal. This is not so simple when another body is introduced. However, with two bodies, any force on acts on the other will have an equal and opposite reaction force. The fact that one of the bodies is moving is irrelevant when considering the relative magnitudes of the Newton's Third law pair.
Example Question #13 : Electric Force Between Point Charges
Two 
Use Coulombs Law:
Where
Convert 
Example Question #64 : Electrostatics
How will the force between two positively charged objects change as they are brought closer together?
The repulsive forces will increase
It is impossible to determine
The force will change from repulsive to attractive
The repulsive force will decrease
The attractive forces will increase
The repulsive forces will increase
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