List of top Physics Questions on applications of diode asked in JEE Main

In the given circuit, the breakdown voltage of the Zener diode is 3.0 V. What is the value of I_z ?

The electrostatic potential due to an electric dipole at a distance \( r \) varies as:

Find the current through Zener diode if its breakdown voltage is 5 V.

A zener diode of power rating 1.6 W is to be used as voltage regulator. If the zener diode has
a breakdown of 8 V and it has to regulate voltage fluctuating between 3 V and 10 V. The
value of resistance R_s for safe operation of diode will be

Which one of the following statements is not correct in the case of light-emitting diodes?
A. It is a heavily doped p-n junction.
B. It emits light only when it is forward-biased.
C. It emits light only when it is reverse-biased.
D. The energy of the light emitted is equal to or slightly less then the energy gap of the semiconductor used.
Choose the correct answer from the options given below:

In the given figure, the value of V₀will be ______ V.

A zener of breakdown voltage V_Z = 8 V and maximum Zener current, I_ZM = 10 mA is subjected to an input voltage V_i = 10 V with series resistance R = 100 Ω. In the given circuit R_L represents the variable load resistance. The ratio of maximum and minimum value of R_L is __________.

In the given circuit the input voltage V_in is shown in figure. The cut-in voltage of p–n junction diode (D₁ or D₂) is 0.6 V. Which of the following output voltage (V₀) waveform across the diode is correct?

Match List I with List II:

List I		List II
A	Intrinsic Semiconductor	I	Fermi-level near the conduction band
B	n-type semiconductor	II	Fermi-level in the middle of valence and conduction band
C	p-type semiconductor	III	Fermi-level near the valence band
D	Metals	IV	Fermi-level inside the conduction band

Choose the correct answer from the options given below:

Which of the following circuits would have the diode in conducting state?

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