Ch. 1 Electricity Question Preview (ID: 33809)
Basic Components Of Electricity.
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The space around a particle through which an electric charge can exert force is.
a) An electric field
b) A polarized field
c) An atomic field
d) A resistance field
Which of these is a technology that makes use of static charges?
a) A clothes dryer
b) An electric outlet
c) A copier machine
d) Copper wiring
Before a flash of lightning, a positive charge builds up on the ground’s surface through
a) Induction
b) Conduction
c) insulation
d) Contact charging
An electric charge will move between two positions with different
a) Resistances
b) Amperages
c) Currents
d) Potentials
An electric current is a flow of
a) Charge
b) Resistance
c) Conduction
d) Insulation
Which of these would have the MOST resistance?
a) A long, thin, copper wire
b) A long, thick, copper wire
c) A short, thin, copper wire
d) A short, thick, copper wire
An Ampere is the standard unit of measure for:
a) Resistance
b) Electric potential
c) Charge
d) Current
An OHM is the standard unit of measure for:
a) Resistance
b) Current
c) Electric potential
d) Charge
A Volt is the standard unit of measure for:
a) Resistance
b) Current
c) Voltage
d) Charge
._________________________is the amount electric potential energy per unit charge at a certain position in an electric field.
a) Electrical potential
b) volt
c) Ohm
d) Amp
An electric potential of one___________________________ is equal to one joule of energy per coulomb of charge.
a) electrical potential
b) current
c) Volt
d) charge
Which of the following affects resistance?
a) Temperature
b) Conductor
c) Insulator
d) Battery
Which of the DOES NOT affect resistance?
a) Length of wire
b) Type of wire
c) Thickness
d) Insulation
A current flows from a 6-volt battery through a wire with a resistance of 2 Ohms. Use Ohm’s Law to calculate the amperage.
a) 2A
b) 3A
c) 3ohms
d) 2I
Use Ohm’s Law to determine the voltage of a battery that sends 3 amps of current through a wire with a resistance of 2 Ohms.
a) 6V
b) 6A
c) 5V
d) 12V
A storage cell has the capability to do what?
a) recharge and be used again
b) be used once
c) sends electrons only out
d)
A primary cell has two types....
a) wet cell and paste cell
b) storage cell and wet cell
c) Wet cell and dry cell
d) dry cell and paste cell
In Ohm's triangle which letter goes on top?
a) V
b) I
c) R
d)
Steel allows an electric charge to pass through it easily. Steel is a good ___________________________.
a) insulator
b) Conductor
c) resistator
d) insulation
. Rubber does not easily allow a charge to pass through it. Rubber is a good. __________________________.
a) insulator
b) conductor
c)
d)
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