Ch 17 Question Preview (ID: 6252)
Electrcity.
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Electric Field lines
a) point toward a negative charge
b) point away from a positive charge
c) never cross one another
d) all of the answers are correct
Electric Field lines indicate
a) direction only
b) relative strength only
c) both direction and relative strength
d) neither direction and relative strength
Potential differences cause
a) electrons to move from positive terminal to negative terminal
b) electrons to move from negative terminal to positive terminal
c) protons to move from positive terminal to negative terminal
d) protons to move from negative terminal to positive terminal
the resistance of an insulator is
a) absent
b) very low
c) moderate
d) high
positive charges ____________ one another
a) attract
b) cancel
c) repel
d) join
The electric force between two objects ___ when the distance between them decreases
a) increases
b) decreases
c) remains constant
d) none of the answers are correct
which of the following is a negatively charge particle
a) proton
b) electron
c) coulomb
d) neutron
electric field lines show strength and ___ of an electric field
a) polarization
b) direction
c) temperature
d) friction
_____ is the opposition posed by a material to the flow of current
a) voltage
b) charge
c) resistance
d) ampere
a circuit breaker acts as a switch creating a ___ circuit when the current is too high
a) closed
b) series
c) open
d) parallel
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