Magnetic field due to currentHard
Question
A conducting ring of mass 2 kg and radius 0.5 m is placed on a smooth horizontal plane. The ring carries a current i = 4A. A horizontal magnetic field B = 10 T is switched on at time t = 0 as shown in figure. The initial angular acceleration of the ring will be
Options
A.40π rad / s2
B.20π rad / s2
C.5π rad / s2
D.15π rad / s2
Solution
⇒ IA × B × 90o =
α⇒1 × 4 × πR2 × × 10 × 1 =
R2 × α⇒ α = 40π rad /s2
Create a free account to view solution
View Solution FreeMore Magnetic field due to current Questions
A semi circular current carrying wire having radius R is placed in x-y plane with its centre at origin ′O′. ...A stationary magnet does not intereact with :-...Mean radius of a toroid is 10 cm and number of turns are 500. If current flowing through it is 0.1 ampere then value of ...Equal current i is flowing in three infinitely long wires along positive x, y and z directions. The magnitude of magneti...wo particles A and B of masses mA and mB respectively and having the same charge are moving in a plane. A uniform magnet...