Millionaire Mode

The magnetic effect of a current - class-XII

Question 1 of 42

What material is used for making the armature of an electric bell ? Give a reason for using this material.

  1. Soft Iron
  2. Carbon
  3. Glass
  4. Silicon

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