Question

(a) What is the difference between alternating current and direct current?
(b) What type of current is given by (i) a dry cell, and (ii) a power House generator?

Answer 1

The difference between alternating current and direct current.

Explanation:

(a) Direct Current:

• The current flow i.e., the flow of charges is in one direction.
• The voltage is also in a single direction.
• The digital appliances are DC.

Alternating Current:

• The current flow i.e, the flow of charges is not in one direction i.e., it changes periodically.
• The voltage reverses periodically according to the current flow.
• The wired appliances are AC

(b) (i) A dry cell: A DC current is given

    (ii) A power house generator : An AC current is given.

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