Question

Which of the following is true for diode resistance?
A. Diode resistance will be the same at different times on the AC sine wave.
B. Diode resistance will be different at different times on the AC sine wave.
C. Diode resistance will be the same at the varying times on the AC sine wave.
D. None of these

Answer 1

Hint: The term diode resistance, it is the effective difference supplied by the diode to the flow of the electric current across it. A diode is looking for the zero resistance when the potential barrier allows the electric current to flow through its junction and the infinite resistance gives strength to the potential barrier to oppose the flow of the electric charge carriers.

Complete step by step solution:
A diode is a type of semiconductor device that necessarily acts as the one way switch for the electric current.
Diode allows the flow of electric current in one direction, but seriously controls the flow of electric current in the opposite direction.
The expression be
${R_D} = \dfrac{{{V_T}}}{{{I_D}}}$
Here, ${R_D}$ is the diode resistance
${V_T}$ Is the thermal voltage
${I_D}$ Is the diode current
Diode resistance will be different at different times on the AC sine wave.

So, the correct answer is “Option B”.

Note: The diode can be seen as an electronic value of a check value. A LED as we know that, is a type of diode which is designed for glow. We used diodes as rectifiers, voltage regulators, switches, demodulators, oscillators etc. The main thing is the diode only allows the half of the AC waves.