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What causes an electric current (amperes) to
flow in a wire?
What are the analogies to voltage, current, and
resistance in a closed water circuit?
What is Ohm's Law?
What is the voltage law? Draw the analogy
to the behavior of a water circuit.
What is the current law? Draw the analogy
to the behavior of a water circuit.
How is the electric power calculated
in a DC circuit?
How do you determine the equivalent
resistance of two resistors in series?
in parallel?
How do you determine voltages and currents
for two resistors in series? in parallel?
How can you measure electric resistance
with a voltmeter and ammeter?
What is meant by emf?
How do you calculate voltage and current in
a circuit which has more than one loop?
Describe the charging of a capacitor by
a battery.
What is meant by the time constant in
capacitor charging?
Describe the discharge of a capacitor.
Elements of practical electric circuits
Describe the basic layout of standard U.S. household
wiring systems. Why are there two high voltage or
"hot" wires?
Why are standard U.S. receptacles "polarized" with
one wide prong and one narrow prong?
What is the function of a fuse or circuit breaker?
What is the function of a ground wire?
If the ground wire is broken, what indication of this
will you get from the operation of the appliance?
Is household wiring in series or parallel? Why?
Why is it that a small amount of corrosion on an auto
battery terminal can prevent the engine from starting?
If the auto won't start and you suspect the battery,
are the headlights and horn operation a good test of
the battery's strength?
Why is it that a battery may test at normal voltage
even when it is too spent to supply appreciable
power to a circuit?
What is meant by a "short circuit"? an "open circuit"?
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