The figure represents a thin conducting loop placed in a uniform magnetic field
ID: 2061590 • Letter: T
Question
The figure represents a thin conducting loop placed in a uniform magnetic field directed perpendicular to the plane of the paper and inwards. Some of the following questions pertain to it. (Select True or False).
a) If the magnitude of the magnetic field starts decreasing, the resultant induced current (due to the whole loop) flows in the clockwise direction in the right loop.
b) The size of the voltage induced in a coil through which a magnet moves is affected by the strength of the magnet.
c) In Faraday's Law of induction, the induced emf depends on the resistance in the coil or circuit.
d) The size of the voltage induced in a coil through which a magnet moves is independent of the rate at which the magnet moves.
e) A current carrying conductor passes through the centre of a metal ring in a direction perpendicular to its plane. If the current flowing through the conductor increases, no emf is induced in the ring.
f) No emf is induced in a long, but not infinite, solenoid by a bar magnet that moves inside it along the solenoid axis.
I answered TTFFFF, FTFFFF and TTFFTF but can't seem to get the answer. Thank you in advance.
Explanation / Answer
For part C, i noticed youve answered false on all attempts. Although the question states resistance, they may be referring to the reluctance of the circuit. Induction still faces an imaginary resistance called reluctance that does come into effect when dealing with EMF and MMF. Perhaps that may be the problem, someone else may have greater insight into this than me. I believe you are indeed correct for part F being false