Question

what is the purpose of a fuse?
a) to provide emergency power if the battery is low.
b) to protect circuits from excessive current flow.
c) prevents the battery from becoming overcharged.
d) all of the above.

Explanation:

A fuse melts when current exceeds its rating, safeguarding circuits. It doesn't provide emergency power or prevent battery over - charging.

Answer:

B. To protect circuits from excessive current flow.