13. A parallel plate capacitor has rectangular plates of area A = 5 (cm²) separate by distance d = 0.5 (mm). If the potential difference between the plates changes at a rate of 10⁴ (volt/sec), what is the displacement current? (permittivity of vacuum ε₀ = 8.854 × 10⁻¹² (F/m))
(A) 8.854 × 10⁻⁴ (amp)
(B) 4.427 × 10⁻⁸ (amp)
(C) 1.771 × 10⁻⁷ (amp)
(D) 4.427 × 10⁻⁷ (amp)
(E) 8.854 × 10⁻⁸ (amp)

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詳解 (共 1 筆)

#7443980
所以根據平行板電容器的電容
的公式會等於u0A/d
然後又根據I=dQ/dt
加上Q=CV
可以得到I=Cdv/dt
所以可以得到位移電流會等於Cdv/dt
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