Question

1) what do you understand by the term open electric circuit ? for 2 mark.

2)what is the role of fuse , used in series with any electrical appliance .for 2 mark​

Answer 1

Explanation:

1. Any circuit which does not have a return path is an open circuit. For example,if you connect wire to the two ends of a battery with a bulb in between, it glows as current flows in the wire because it has a return path or closed path. But, if you remove half part of the wire,then no current flows

2. A fuse is placed in series with the circuit so that the same current flows through the fuse and the electrical circuit. ... If a fuse of higher rating is used, then it will not blow off even when the current exceeds the safety limit of the appliance. As a result, the electrical appliances may get damaged

Answer 2

Answer:(1) Open electric circuit means it is not connected by electric current.

2.fuse is usually used for safety of electrical devices.

Explanation: