Fill in the following blanks with suitable words: c) The magnetic effect of a coil can be increased by increasing the number of ………, increasing the …….., or inserting an …. core.
d) If a coil is viewed from one end and the current flows in an anticlockwise direction, then this end is a pole.

Answer:

(c) The magnetic effect of a coil can be increased by increasing the number of turns increasing the current or inserting an iron core.

Explanation:

The strength of an electromagnet can be raised in three ways:

1. By increasing the number of turns in the coil.

2. By boosting the current via the electromagnet’s coil.
3. By shortening the air gap between the electromagnet’s poles.

(d) If a coil is viewed from one end and the current flows in an anticlockwise direction, then this end is a north pole.

Explanation:

The clock rule determines the coil’s polarity. If we face one end of the coil and the current travels counterclockwise, we get the North Pole and the South Pole.