Electricyty And Magnetism
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Publicado: 13 de agosto de 2012
CHAPTER 3 ELECTRICITY AND MAGNETISM
MULTIPLE CHOICE QUESTIONS
Good insulators will not allow the conduction of electric current because:
c) the electrons of the atoms of the conductor aretigthly bonded to the atoms
The electric force between an electron and neutron is:
d) zero
An object is electrically positive charged, when:
Have a few electrons
An object is electricallynegative charged, when:
Have a great
If an electroscope is charged negatively and an object charged positively gets close to the plates of the electroscope:
get closer to each other
It isan amount of charge, such that, when another one is placed 1 m away, a force of 〖9x10〗^9N:
b) 1 coulomb
If an electroscope is charged positively and an object charged positively gets close tothe plates of the electroscope:
c) will get apart from each other
An object can be electrified if :
d) is in contact with another charged object
9. An object can be electrified if:b) it is in friction with another object
How is the magnitude of an electric force respect the force of gravity between an electron and proton?
None
When the distance of two smallspheres is doubled, the electric force between them is:
d) reduced to one fourth (F/4)
Two charged particles are attracted to each other by a force F. If the charge of one particle and also thedistance between them is doubled, then the force will be:
a) F/2
Two charge q1 and q2 are attracted with certain force F. Suppose that the distance between these charges is tripled. For the force Fto remain a constant, the magnitude of q1, should be:
b) nine times grater
Two charge q1 and q2 are attracted with a certain force F. Suppose that the value of q1 is doubled and the value of q2is eight times greater. For the force F remain constant, the distance between r and q1 and q2, should be:
d) four times grater
In the figure two charged q1 and q2 are shown, both positives...
MULTIPLE CHOICE QUESTIONS
Good insulators will not allow the conduction of electric current because:
c) the electrons of the atoms of the conductor aretigthly bonded to the atoms
The electric force between an electron and neutron is:
d) zero
An object is electrically positive charged, when:
Have a few electrons
An object is electricallynegative charged, when:
Have a great
If an electroscope is charged negatively and an object charged positively gets close to the plates of the electroscope:
get closer to each other
It isan amount of charge, such that, when another one is placed 1 m away, a force of 〖9x10〗^9N:
b) 1 coulomb
If an electroscope is charged positively and an object charged positively gets close tothe plates of the electroscope:
c) will get apart from each other
An object can be electrified if :
d) is in contact with another charged object
9. An object can be electrified if:b) it is in friction with another object
How is the magnitude of an electric force respect the force of gravity between an electron and proton?
None
When the distance of two smallspheres is doubled, the electric force between them is:
d) reduced to one fourth (F/4)
Two charged particles are attracted to each other by a force F. If the charge of one particle and also thedistance between them is doubled, then the force will be:
a) F/2
Two charge q1 and q2 are attracted with certain force F. Suppose that the distance between these charges is tripled. For the force Fto remain a constant, the magnitude of q1, should be:
b) nine times grater
Two charge q1 and q2 are attracted with a certain force F. Suppose that the value of q1 is doubled and the value of q2is eight times greater. For the force F remain constant, the distance between r and q1 and q2, should be:
d) four times grater
In the figure two charged q1 and q2 are shown, both positives...
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