3. The magnetic field at any point on the axial line of a short magnet is :
(a) equal to the magnetic field at an equidistant point on its equatorial line (b) twice the magnetic field at an equidistant point on its equatorial line (c) zero (d) half the magnetic field at an equidistant point on its equatorial line
Answer
Answer : (b)
Explanation
Explanation : No answer description available for this question. Let us discuss.
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5555555555 1. The induced voltage across a coil with 250 turns that is located in a magnetic field that is changing at a rate of 8 Wb/s is ________. (a) 1,000 V (b) 2,000 V (c) 31.25 V (d) 3,125 V
Electromagnetic Induction » Exercise - 18. The dimensions of ‘self inductance’ and ‘magnetic flux’ are : (a) M L T –2 and M L 2 T –1 A –1 respectively (b) M L 2 T –2 A –2 and M L 2 T –2 A –1 respectively (c) M 2 L -1 T –1 and M 2 L 2 T –2 respectively (d) M T –2 A –1 and M 2 L T respectively
5555555555 11. The induced voltage across a stationary conductor in a stationary magnetic field is ________. (a) zero (b) reversed in polarity (c) increased (d) decreased