1. Which of the following does NOT induce a current in a coil? A.Moving a bar ma
ID: 1579929 • Letter: 1
Question
1. Which of the following does NOT induce a current in a coil?
A.Moving a bar magnet towards a coil
B.Moving a bar magnet away from a coil
C.Moving a second current-carrying coil towards a coil
D.A stationary bar magnet near a coil
2. If we have an N-loop circular coil in between the poles of an electromagnet such that the magnetic field is perpendicular to the plane of the coil and we decrease the magnetic field at a rate of 0.1 T/s, which of the following would cause the largest induced emf in the coil?
A.A larger magnetic field
B.Incresase the number of loops in the coil
C.Decrease the radius of the coil
D.None of the above
A.Moving a bar magnet towards a coil
B.Moving a bar magnet away from a coil
C.Moving a second current-carrying coil towards a coil
D.A stationary bar magnet near a coil
Explanation / Answer
Current can induced when magnetic field changes with time.
When bar magnet is stationary..no magnetic field changes with time,therefore no current will induced.
Option D is correct
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.