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AIIMS 2006
Exam
AIIMS
Year
2006
Subject
Physics
Chapter
Magnetic Effects of Current

AIIMS 2006 · Physics · Magnetic Effects of Current

A metallic ring is dropped down, keeping its plane perplendicular...

A metallic ring is dropped down, keeping its plane perplendicular to a constant and horizontal magnetic field. The ring enters the region of magnetic field at t=0t=0 and completely emerges out at t=Tsect=T \mathrm{sec}. The current in the ring varies asA metallic ring is dropped down, keeping its plane perplendicular to a constant and horizontal magnetic field. The ringA metallic ring is dropped down, keeping its plane perplendicular to a constant and horizontal magnetic field. The ringA metallic ring is dropped down, keeping its plane perplendicular to a constant and horizontal magnetic field. The ringA metallic ring is dropped down, keeping its plane perplendicular to a constant and horizontal magnetic field. The ringA metallic ring is dropped down, keeping its plane perplendicular to a constant and horizontal magnetic field. The ring

Options

  1. AWhile conducting the Young's double slit experiment, a student replaced the two slits with a large opaque plate in the
  2. BWhile conducting the Young's double slit experiment, a student replaced the two slits with a large opaque plate in the
  3. CWhile conducting the Young's double slit experiment, a student replaced the two slits with a large opaque plate in the
  4. DWhile conducting the Young's double slit experiment, a student replaced the two slits with a large opaque plate in the

Correct answer

B. While conducting the Young's double slit experiment, a student replaced the two slits with a large opaque plate in the

Step-by-step solution

A metallic ring is dropped down, keeping its plane perplendicular to a constant and horizontal magnetic field. The ring
1. When the ring is just entering the magnetic field, emf is induced and the current flows in one direction. 2. When the whole ring is surrounding the flux inside, there is no change in the flux. Induced emf =0=0, current is zero. 3. When the ring just goes out of the region of flux, a pulse of current is produced which is opposite to that of 1 given above. (2) is the only figure that describes this.
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