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WorksheetsElectric Circuits & Devices
Total questions: 13
Worksheet time: 8mins
How many paths through which charge can flow would be shown in a diagram of a series circuit?
one
two or more
none
More information is needed
What is the unit of electric power
ampere
volt
watt
ohm
Which of the following provides electrical safety
circuit breaker
fuse
grounded plugs
all of the above
The strength of an electric field depends on the
amount of charge that produced the field.
distance from the charge.
amount of charge on a test charge placed in the field.
both the first and second choices listed above.
What do electric forces between charges depend on?
the quantity of charge involved
how far apart the charges are
both choices listed above
none of the above
What type of current is produced by a battery
parallel current
alternating current
direct current
potential current
The current in a hair dryer measures 15.0 amps. The resistance of the hair dryer is 8 ohms. What is the voltage
120V
0.5V
7V
1800V
Most of the circuits in your home are
series circuits
parallel circuits
reversible circuits
closed circuits
If you know the power rating of an appliance and the voltage of the line it is attached to, you can calculate the current the appliance uses by
multiplying the voltage by the power.
subtracting the power from the voltage.
dividing the voltage by the power.
dividing the power by the voltage
What is the best term to describe information sent as patterns and codes in the controlled flow of electrons through a circuit?
electronic signal.
digital signal.
analog signal.
integrated signal.
A vacuum tube can be used to
change alternating current into direct current.
increase the strength of a signal.
turn a current on or off.
all of the above
A solid-state component with three layers of semiconductors is a
transistor.
diode.
vacuum tube.
resistor.
What is the primary use of transistors in a mobile phone?
store electric charge
maintain proper voltage
store data
amplify the phone's incoming signal
