Millionaire Mode

Making magnets - class-VII

Question 1 of 19

Identify the methods by which a magnet can be demagnetized.

  1. Heating a magnet strongly
  2. Repeated hammering of the magnet
  3. Storing it aligned with the N-S direction
  4. None of these

Prize Money

15₹7 Crores
14₹1 Crore
13₹50,00,000
12₹25,00,000
11₹12,50,000
10₹6,40,000
9₹3,20,000
8₹1,60,000
7₹80,000
6₹40,000
5₹20,000
4₹10,000
3₹5,000
2₹2,000
1₹1,000