Electrical Flashcards
1
Q
What is voltage?
A
An electrical pressure.
2
Q
What is the basic unit of voltage?
A
The volt.
3
Q
What instrument is used to measure voltage?
A
A voltmeter.
4
Q
To measure voltage, is a voltmeter placed in series or in parallel with the source of voltage?
A
In parallel
5
Q
What is the voltage across each resistor in a parallel across a 12-volts battery?
A
12-volts.
6
Q
What is the open-circuit voltage of a lead-acid cell?
A
2.1 volts.
