Fill in the blanks (a) A magnet has ............. poles. (b) Like po

1.	Fill in the blanks (a) A magnet has ............. poles. (b) Like poles repel each other and unlike poles ..................(c) An electromagnet is used to separate large mass of ............ scrap. (d) The strength of magnetic field of an electromagnet is increased by inserting a core of soft ...................(e) In a torch we use .......... cell as the source of electricity. (f) To light a table lamp and to run a refrigerator, we use ............. as the source of electricity. (g) A group of two or more cells is called a .............. (h) ............... pass electricity through them. (i) ........................ do not pass electricity through them.
Answer» (a) A magnet has two poles. (b) Like poles repel each other and unlike poles attract. (c) An electromagnet is used to separate large mass of iron scrap. (d) The strength of magnetic field of an electromagnet is increased by inserting a core of soft iron. (e) In a torch we use dry cell as the source of electricity. (f) To light a table lamp and to run a refrigerator, we use mains as the source of electricity. (g) A group of two or more cells is called a battery. (h) Conductors pass electricity through them. (i) Insulators do not pass electricity through them.

Fill in the blanks (a) A magnet has ............. poles. (b) Like poles repel each other and unlike poles ..................(c) An electromagnet is used to separate large mass of ............ scrap. (d) The strength of magnetic field of an electromagnet is increased by inserting a core of soft ...................(e) In a torch we use .......... cell as the source of electricity. (f) To light a table lamp and to run a refrigerator, we use ............. as the source of electricity. (g) A group of two or more cells is called a .............. (h) ............... pass electricity through them. (i) ........................ do not pass electricity through them.

Answer»

(a) A magnet has two poles.

(b) Like poles repel each other and unlike poles attract.

(d) The strength of magnetic field of an electromagnet is increased by inserting a core of soft iron.

(e) In a torch we use dry cell as the source of electricity.

(f) To light a table lamp and to run a refrigerator, we use mains as the source of electricity.

(g) A group of two or more cells is called a battery.

(h) Conductors pass electricity through them.

(i) Insulators do not pass electricity through them.