Calculate the diffusion capacitance of a p-n junction diode.

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The diffusion capacitance of a p-n junction diode can be calculated using the following formula:

Cd = (q / τ) * (W / A)

where Cd is the diffusion capacitance

q is the electronic charge
τ is the minority carrier lifetime
W is the depletion width
A is the junction area.

The diffusion capacitance is a measure of the rate at which the diode can switch from a conducting to a non-conducting state, and is dependent on the characteristics of the diode material and the doping concentrations. The minority carrier lifetime is a measure of how long the minority carriers (electrons in p-type and holes in n-type) can survive before recombining, and is related to the doping concentrations and the temperature.

The depletion width is the width of the region at the p-n junction where the majority carriers have diffused away, leaving behind a region with a low concentration of free charge carriers. The junction area is the area of the p-n junction, which can be approximated by the area of the diode's metal contact pads. The diffusion capacitance of a p-n junction diode can be calculated using the above formula with the appropriate values for q, τ, W, and A.

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Calculate the diffusion capacitance of a p-n junction diode.

CBSE CLASS XII Related Questions

1.
Find the ratio $\dfrac{\lambda_\alpha}{\lambda_p}$ of the de Broglie wavelength $\lambda_\alpha$ associated with an alpha particle to the de Broglie wavelength $\lambda_p$ associated with a proton if both are moving with the same velocity.

3.
A square loop of side 0.50 m is placed in a uniform magnetic field of 0.4 T perpendicular to the plane of the loop. The loop is rotated through an angle of $60^\circ$ in 0.2 s. The value of emf induced in the loop will be:

4.
Draw the plot of potential energy of a pair of nucleons as a function of their separation. Write two important conclusions that can be drawn from this plot.

5.
Two point charges -Q and Q are located at points (d, 0) and (0, d) respectively, in x-y plane. The electric field E at the origin will be:

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Calculate the diffusion capacitance of a p-n junction diode.

CBSE CLASS XII Related Questions

1.Find the ratio $\dfrac{\lambda_\alpha}{\lambda_p}$ of the de Broglie wavelength $\lambda_\alpha$ associated with an alpha particle to the de Broglie wavelength $\lambda_p$ associated with a proton if both are moving with the same velocity.

3.A square loop of side 0.50 m is placed in a uniform magnetic field of 0.4 T perpendicular to the plane of the loop. The loop is rotated through an angle of $60^\circ$ in 0.2 s. The value of emf induced in the loop will be:

4.Draw the plot of potential energy of a pair of nucleons as a function of their separation. Write two important conclusions that can be drawn from this plot.

5.Two point charges -Q and Q are located at points (d, 0) and (0, d) respectively, in x-y plane. The electric field E at the origin will be:

Similar Physics Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Find the ratio $\dfrac{\lambda_\alpha}{\lambda_p}$ of the de Broglie wavelength $\lambda_\alpha$ associated with an alpha particle to the de Broglie wavelength $\lambda_p$ associated with a proton if both are moving with the same velocity.

3.
A square loop of side 0.50 m is placed in a uniform magnetic field of 0.4 T perpendicular to the plane of the loop. The loop is rotated through an angle of $60^\circ$ in 0.2 s. The value of emf induced in the loop will be:

4.
Draw the plot of potential energy of a pair of nucleons as a function of their separation. Write two important conclusions that can be drawn from this plot.

5.
Two point charges -Q and Q are located at points (d, 0) and (0, d) respectively, in x-y plane. The electric field E at the origin will be: