COMEDK · Physics · 24. Electromagnetic Waves
Which of the following is incorrect for displacement current
- A Displacement current exists only when electric field changes with time
- B Displacement current obeys ohm's law
- C Displacement current produces magnetic field just like conduction current
- D Unlike conduction current, displacement current does not involve the flow of electrons through a conductor
Answer & Solution
Correct Answer
(B) Displacement current obeys ohm's law
Step-by-step Solution
Detailed explanation
Displacement current is given by \(I_d = \epsilon_0 \dfrac{d\Phi_E}{dt}\), which means it exists only when the electric flux or electric field changes with time. It produces a magnetic field in the same way as conduction current, as described by the Ampere-Maxwell law.…
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