Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

 Multiple Choice QuestionsMultiple Choice Questions


Two concentric coils each of radius equal to 2 π cm are placed at right angles to each other. If 3A and 4A are the currents flowing through the two coils respectively. The magnetic induction (in Wb m-2) at the centre of the coils will be

  • 5 × 10-5

  • 12 × 10-5

  • 7 × 10-5

  • 10-5


Two coils have a mutual inductance 0.005 H. The current changes in the first coil according to the equation I = im sin ωt, where im = 10 A and ω = 100 rad s-1. The maximum value of the emf induced in the second coil is

  • π

  • 2π

  • 4π

  • 5π


A wheel with 10 spokes each of length L m is rotated with a uniform angular velocity ω in a plane normal to the magnetic field B. The emf induced between the axle and the rim of the wheel is

  • 12 NωBL2

  • 12 ωBL2

  • ωBL2

  • NωBL2


When 100 V DC is applied across a coil, a current of 1 A flows through it. When 100 V AC of50 Hz is applied to the same coil only 0.5 A flows. The inductance of the coil is

  • 5.5 mH

  • 0.55 mH

  • 55 mH

  • 0.55 H



An aluminium ring B faces an electromagnet A. The current I through A can be altered. Then which of the following statements is correct ?


  • If I decreases, A will repel B

  • Whether I increases or decreases, B will not experience any force

  • If I increases, A will repel B

  • If I increases, A will attract B


If I increases, A will repel B

If I increases then magnetic field in coil will be increases and B will acts as shown in ring B, I will induce in such away that will opposes the increases of I in electromagnet. Hence in B direction of B will be as shown. Hence repel B.