NEET Physics Question - Electromagnetic Waves - Ampere's Law and Displacement Current

Assertion (A): A magnetic needle when placed in between the plates of a parallel plate capacitor under charging, the needle shows deflection.

Reason (R):As the charge on the capacitor plates increases, the electric field and the electric flux between the plates changes which generates a magnetic field.

Both (A) &(R) are true and the (R) is the correct explanation of the (A)

Both (A) &(R) are true but the (R) is not the correct explanation of the (A)

(A) is true but (R) is false

Both (A) and (R) are false

Solution:

During capacitor charging, the changing electric field produces a displacement current \(I_d = epsilon_0 frac{dPhi_E}{dt}\). This displacement current generates a magnetic field, causing the needle to deflect. Thus, A and R are true, and R explains A.

Rankers Physics

Magnetic Field due to Charging Capacitor

Solution:

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