Question

Fill in the blanks.
1. In an electric bell
...................is attracted towards the electromagnet.
2. In a circuit an electric bulb is denoted as................
3. The strength of an electromagnet will .................
when the number of turns of wire
on the nail is more.
4. The safety device based on the heating effect of current is called a ............​

Answer 1

Answer:1.hammer

             2.

              3.increase

               4.fuse or MCB (Miniature Circuit Breaker)

Explanation:

Answer 2

Answer:

In an electric bell soft iron strip that is mounted on a springy met a l is attracted towards the electromagnet.

• The strength of an electromagnet will increased when the number of turns of wire  on the nail is more.

The safety device based on the heating effect of current is called a fuse