Recent questions in Diode Circuits

1 1 vote
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449
449 views
In the voltage regulator shown in the given figure, the load current can vary from $100 \mathrm{~mA}$ to $500 \mathrm{~mA}$. Assuming that the Zener diode is ideal (i.e.,...
0 0 votes
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440
440 views
In a full-wave rectifier using two ideal diodes, $V_{d i}$ and $V_{i d}$ are the $d c$ and peak values of the voltage respectively across a resistive load. If PIV is the ...
1 1 vote
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362
362 views
The zener diode in the regulator circuit shown in the figure has a Zener voltage of $5.8$ volts and a Zener knee current of $0.5 \mathrm{~mA}$. The maximum load current d...
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249
249 views
A zener diode works on the principle oftunneling of charge carriers across the junctionthermionic emissiondiffusion of charge carriers across the junctionhopping of charg...
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525
525 views
In the circuit of the given figure, assume that the diodes are ideal and the meter is an average indicating ammeter. The ammeter will read$0.4 \sqrt{2} \mathrm{~A}$$0.4 \...
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328
328 views
A Zener diode in the circuit shown in the figure is has a knee current of $5 \mathrm{~mA}$, and a maximum allowed power dissipation of $300 \mathrm{~mW}$. What are the mi...
1 1 vote
0 0 answers
452
452 views
In the circuit shown below, the switch wa connected to position $1$ at $t<0$ and at $t=0$, it is changed to position $2$. Assume that $y$ the diode has zero voltage drop ...
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405
405 views
Find the correct match between Group $1$ and Group $2$$$\begin{array}{ll}\qquad \textbf{Group 1} & \qquad \textbf{Group 2} \\\text{E. Varactor diode} & \text{1. Voltage r...
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530
530 views
For the circuit shown below, assume that the zener diode is ideal with a breakdown voltage of $6$ Volts. The waveform observed across $R$ is
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666
666 views
The forward dynamic resistance of a junction diode varies ________ as the forward current.
1 1 vote
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356
356 views
The correct full wave rectifier circuit is
1 1 vote
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351
351 views
For the Zener diode shown in the figure, the Zener voltage at knee is $7 \mathrm{~V}$, the knee current is negligible and the Zener dynamic resistance is $10 \; \Omega$. ...
1 1 vote
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366
366 views
In the following limiter circuit, an input voltage $V_{i}=10 \sin 100 \pi t$ is applied. Assume that the diode drop is $0.7 \mathrm{~V}$ when it is forward biased. The Ze...
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397
397 views
Typical current voltage characteristic of a solar cell is given in the following figure bycurve $A$curve $B$curve $C$curve $D$
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309
309 views
The waveshape of $\mathrm{V}^{0}$ in the figure will be
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326
326 views
Consider the circuit shown in the figure is If the diode used here has the V-I characteristic as in the figure is then the output waveform $v^{0}$ is
1 1 vote
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534
534 views
In the circuit below, the diode is ideal. The voltage $V$ is given by$\min \left(V_{i}, 1\right)$$\max \left(V_{i}, 1\right)$$\min \left(-V_{i}, 1\right)$$\max \left(-V_{...
2 2 votes
1 1 answer
428
428 views
Compared to a $\text{p-n}$ junction with $\mathrm{N}_{\mathrm{A}}=\mathrm{N}_{\mathrm{D}}=10^{14} / \mathrm{cm}^{3}$, which one of the following statements is $\text{TRUE...
0 0 votes
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374
374 views
A $\text{P-N}$ junction series with a $100$ ohms resistor, is forward based so that a current of $100 \mathrm{~mA}$ flows. If the voltage across this combination is inst...
0 0 votes
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337
337 views
The $6 \mathrm{~V}$ Zener diode shown in given figure has zero Zener resistance and a knee current of $5 \mathrm{~mA}$. The minimum value of $R$ so that the voltage acros...