4.
In the current-carrying wire, the natural opposition to the flow of electrons is called:
a. Polarity.
b. Resistance.
c.
Gravity.
d. High potential.
5.
A conductor that allows current to flow freely is said to have _______ resistance.
a. High.
b. Low.
c.
Magnetic.
d. Nonmagnetic.
6.
A circuit in which all the current flows through the whole circuit is a ___________
circuit.
a. Parallel.
b. Series.
c.
High voltage.
7.
The equation E = I x R relates to Ohm's law. If E = 115 volts and I = 15 amperes,
a. 7.67
b. 10.40.
c.
13.00.
d. 16.25.
MD0950
2-39