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NEET
Exam
NEET
Subject
Physics
Chapter
Semiconductors

NEET · Physics · Semiconductors

The resistance of a germanium junction diode whose V-I is shown in...

The resistance of a germanium junction diode whose V−IV-I is shown in figure is (Vk=0.3 V)\left(V_{k}=0.3 \mathrm{~V}\right) The resistance of a germanium junction diode whose V-I is shown in figure is (V_ k =0.3 ~V)

Options

  1. A5kΩ5 \mathrm{k} \Omega
  2. B0.2kΩ0.2 \mathrm{k} \Omega
  3. C2.3kΩ2.3 \mathrm{k} \Omega
  4. D(102.3)kΩ\left(\frac{10}{2.3}\right) \mathrm{k} \Omega

Correct answer

B. 0.2kΩ0.2 \mathrm{k} \Omega

Step-by-step solution

Resistance, \mathrm{R}=\frac{\Delta \mathrm{V}}{\Delta\mathrm{I}}=\frac{2.3-0.3}{10 \times 10^{-3}} R=210×103=0.2×103Ω=0.2kΩ\mathrm{R}=\frac{2}{10} \times 10^{3}=0.2 \times 10^{3} \Omega=0.2 \mathrm{k} \Omega
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