Knockout NEET May 2021 (One Month)
An exhaustive E-learning program for the complete preparation of NEET..
A cylindrical bar magnet is rotated about its axis. A wire is connected from the axis and is made to touch the cylindrical surface through a contact. Then
(a) a direct current flows in the ammeter A.
(b) no current flows through the ammeter A.
(c) an alternating sinusoidal current flows through the ammeter A with a time period T=2π/ω.
(d) a time-varying non-sinusoidal current flows through the ammeter A.
An exhaustive E-learning program for the complete preparation of NEET..
Master Maths with "Foundation course for class 10th" -AI Enabled Personalized Coaching -200+ Video lectures -Chapter-wise tests.
An exhaustive E-learning program for the complete preparation of JEE Main..
An exhaustive E-learning program for the complete preparation of NEET..
An exhaustive E-learning program for the complete preparation of JEE Main..
b)
When the cylindrical bar magnet is rotated about its axis, there is no change in flux linked with the circuit. So no current flows through the ammeter A