Millionaire Mode

Electromagnetic Induction and Alternating Current

Question 1 of 15

A 20-turn square coil of side 8.0 mm is pivoted at the centre and placed in a magnetic field of flux density 0.010 T, such that two sides of the coil are parallel to the field and two sides are perpendicular to the field. A current of 5.0 mA is passed through the coil. What is the magnitude of the torque acting on the square coil?

  1. 0.1 x 104 N m
  2. 0.1 x 10-8 N m
  3. 6.4 x 10-8 N m
  4. 62.5 x 108 N m
  5. 0.025 x 10-4 N m

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