Question

which of the following is true regarding current in an external circuit?
a) direct current always moves from the positively charged terminal to the negatively charged terminal.
b) alternating current always moves from the positively charged terminal to the negatively charged terminal.
c) the flow of an alternating current switches direction when a generators terminals change its charge.
d) a direct current constantly switches direction of flow to match the change of charge at each terminal.
question 6 (5 points)

Explanation:

• Direct current (DC) flows in a fixed direction, from the positive terminal to the negative terminal of a power source in an external circuit.
• Alternating current (AC) has its direction periodically reversed because the charge polarity of the generator's terminals switches, causing the current flow to switch direction as well.
• Option B is false because AC does not always flow in one direction.
• Option D is false because DC does not switch direction.

Answer:

A) Direct current always moves from the positively charged terminal to the negatively charged terminal.
C) The flow of an alternating current switches direction when a generator's terminals change its charge.