Verified Solution • 2025–26 Session moderate

QJEEM20Ph2296: JEE Main 2020 Physics - Class 12 JEEM20Ph2296 Solution: Consider a circular coil of wire carrying constant current I,…

Consider a circular coil of wire carrying constant current I, forming a magnetic dipole. The magnetic flux through an infinite plane that contains the circular coil and excluding the circular coil area is given by ϕi. The magnetic flux through the area of the circular coil area is given by ϕ0. Which of the following option is correct?

Multiple Choice Options

  • A ϕi = ϕ0
  • B ϕi < ϕ0
  • C ϕi > ϕ0
  • D ϕi = - ϕ0

Step-by-Step Verified Solution

As, magnetic field lines forms a closed loop, hence each line from circular area will pass through outer area in opposite direction hence ϕi = - ϕ0.

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