Maharashtra Board Class 7 Science Solution Chapter 19 – Properties of a Magnetic Field
Balbharati Maharashtra Board Class 7 Science Solution Chapter 19: Properties of a Magnetic Field. Marathi or English Medium Students of Class 7 get here Properties of a Magnetic Field full Exercise Solution.
Std |
Maharashtra Class 7 |
Subject |
General Science Solution |
Chapter |
Properties of a Magnetic Field |
(1) (a) The alloys called alnico and Nipermag are used for making industrial magnets.
(b) A magnetic fields can pass through cardboard and water.
(c) The intensity of a magnetic fields is indicated by the line of magnetic force.
(d) The real test of a magnet is repulsion.
(2)
Group-A |
Group-B |
(a) Compass |
(4) A magnetic needle |
(b) Door of a cupboard |
(3) A magnet |
(c) Repulsion |
(2) Like Poles |
(d) Magnetic Pole |
(1) The highest magnetic Pole |
(3) (b) Substance are for making electromagnets
A battery, a long copper wire, an iron rail.
(c) Magnetic field: A magnetic fields is a region where the magnetic force can be experienced by an object. Magnetic fields lines emanate from the North Pole and end at the south pole.
(d) We know earth is like a magnet with its pole. Thus, a magnetic needle is used in a compass.
(4) In the past a magnetic stone paint north-south direction. Thus the merchants of olden times used a magnet while travelling.