CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 383 - 384 of 463
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Question number: 383
» Electronics and Experimental Methods » Semiconductor Devices » Diodes
Appeared in Year: 2011
Question
The figure below shows a voltage regulator utilizing a Zener diode of breakdown voltage 5V and a positive triangular wave input of amplitude 10V.
A Circuit for a Voltage Regulator
In figure shows a voltage regulator utilizing a Zener diode of breakdown voltage 5V.
Graph of Input Voltage Verses Time
In figure positive triangular wave of voltage passing through Zener diode is shown.
For , the Zener regulates the output voltage by channeling the excess current through itself. Which of the following waveforms shows the current passing through the Zener diode? (December)
Choices
| Choice (4) | Response | |
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| a. |  Current Passing Through Zener Diode: Choice A In figure waveforms shows the current passing through Zener diode. |
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| b. |  Current Passing Through Zener Diode: Choice B In figure waveforms shows the current passing through Zener diode. |
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| c. |  Current Passing Through Zener Diode: Choice C In figure waveforms shows the current passing through Zener diode. |
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| d. |  Current Passing Through Zener Diode: Choice D In figure waveforms shows the current passing through Zener diode. |
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Question number: 384
» Electromagnetic Theory » Laplace and Poisson Equations
Appeared in Year: 2011
Question
A static, spherically symmetric charge distribution is given by , where A and K are positive constants. The electrostatic potential corresponding to this charge distribution varies with as, (June)
Choices
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