1. Tardigrade
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  3. Physics
  4. A constant magnetic field of 1 T is applied in the x > 0 region. A metallic circular ring of radius 1 m is moving with a constant velocity of 1 m / s along the x-axis. At t=0, the centre of O of the ring is at x=-1 m. What will be the value of the induced emf in the ring at t=1 s ? (Assume the velocity of the ring does not change.)

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Q. A constant magnetic field of $1 \,T$ is applied in the $x > 0$ region. A metallic circular ring of radius $1\, m$ is moving with a constant velocity of $1 \,m / s$ along the $x$-axis. At $t=0$, the centre of $O$ of the ring is at $x=-1 \,m$. What will be the value of the induced emf in the ring at $t=1\, s$ ? (Assume the velocity of the ring does not change.)Physics Question Image

JEE MainJEE Main 2021Electromagnetic Induction

Solution:

$ emf = BLV $
$=1 .(2 R ) .1 $
$=2 \,V $