In a Zener regulated power supply, a Zener diode with \(V_Z=6~\text{V}\)  is used for regulation. The load current is to be \(4.0~\text{mA}\) and the unregulated input is \(10.0~\text{V}\). The value of the series resistor \(R_S\) will be: \((\text{Assume }I_Z=5I_L)\)
1. less  than \(100~\Omega\)
2. zero
3. infinite
4. \(150~\Omega\)
Subtopic:  Applications of PN junction |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

Which one of the following is not true for the photodiodes?

1. The current in the forward bias is more than the current in the reverse bias.
2. Photodiodes are preferably used in the reverse bias condition for measuring light intensity.
3. Photodiodes are preferably used in the forward bias condition for measuring light intensity
4. In photodiodes, only a small portion of the incident photons gets converted to electric current.

Subtopic:  Applications of PN junction |
 62%
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NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Which material is preferred for solar cells?
1. \(\text{Si}\)
2. \(\text{GaAs}\)
3. \(\text{CdS}\)
4. both \(\text{Si}\) and \(\text{GaAs}\)

Subtopic:  Applications of PN junction |
 59%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

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