Question

What will happen if the iron core is replaced with steel in an electromagnet??​

Answer 1

Answer:-

An iron core makes a temporary electromagnet.

It loses its magnetism as soon as the switch is opened and the current is switched off.

A steel core makes a more permanent magnet.

It does not lose its magnetism quickly when the current is switched off

Explanation :-

Iron is easily magnetised and demagnetised.

Steel is more difficult to magnetise and is not easily demagnetised.

A coil with an iron core is called an electromagnet.

The iron core increases the coil’s magnetic field strength.

A simple electromagnet is made by coiling wire around an iron nail.

(Explanation cannot write on your fair copy)

Only write answer

Answer 2

Answer:

POEM - MENDING WALL :- Q4. Though the narrator gives two reasonable and practical reasons for the

destruction of parts of the wall, he still injects a sense of mystery and magic into

the experience. b. Quote a line later in the poem when he returns to this theme.

C.

Explain what the poet is trying to convey here through his narrator.

PLEASE DON'T SPAM ITS VERY MUCH URGENT