a coil of 40 ohm resistance, 100 turns and radius 6mm is connected to ammeter of resistance 160 ohm. coilis placed perpendicular to the magnetic field. when coil is taken out of the field 32 microcoulomb charge flows through it. the magnetic flux density is:

  1. 6.55T
  2. 5.66T
  3. 2.55T
  4. 0.566T
  5. 0.0566T

Hello,

As we know

induced emf is given

Given that ΔQ = 32 × 10–6C

R = 40 + 160 = 200 ohm

  • 55
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