1.
An ohmmeter is connected across an inductor and the pointer indicates zero ohms. The inductor is:
2.
If the main electricity supply is AC 110 V, it means that the 110 V is:
3.
The inductance of an iron-core coil decreases if
4.
When current flows in a wire, the _______ of the metal are moving
5.
A single-phase sinusoidal voltage of 120 V is connected to a 90 Ohm load. The current in the circuit is:
6.
The frequency of DC current is defined as:
7.
Impedance is measured in:
8.
Category 5e cables are used with connector type _______
9.
Which of the following electric devices will be less safe to use?
10.
In the case of a short circuit: