Q.1.
The most common source of DC voltage is a .
Q.2.
Direct current flows through a circuit from the negative electrode called the to the positive electrode called the .
Q.3.
What is the rate of change of alternating current called?
Q.4.
What is electricity that moves continuously in one direction through a conductor called?
Q.5.
This rate of change of alternating current can be measured in cycles per second or this?
Q.6.
What is electricity that moves back and forth in a conductor called?
Q.7.
What gets moved in electrical systems?