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If the electric field E = 0.1 te–t ax and ∈ = 4∈0, then the displacement current crossing an area of 0.1 m2 at t = 0 will be—
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- Zero
- 0.04 ∈0
- 0.4 ∈0
- 4 ∈0
Correct Option: B
E = 0.1 t e– t ix
D = ∈r∈0 E
or D = ∈r∈0 0.1 t e– t ix
or D = 0.4 ∈0 [– te– t + e– t] ix
Dt = 0 = 0.4 ∈0 ix
Displacement current = 0.1 × 0.4 ∈0 ix
= 0.04 ∈0 ix
