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2. | The normal operation of JFET is |
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Answer: Option B Explanation: In major portion of drain characteristics ID is constant. |
3. | The power dissipation in a transistor is the product of |
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Answer: Option C Explanation: Maximum power dissipation occurs at collector junction. |
4. | Which of the following is true as regards photo emission? |
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Answer: Option C Explanation: As wavelength decreases, frequency increases and maximum velocity of electron increases. |
5. | A p-n junction diode has |
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Answer: Option D Explanation: A p-n Junction has all these features. |
6. | In which region of a CE bipolar transistor is collector current almost constant? |
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Answer: Option B Explanation: It is used as amplifier when it operates in this region. |
7. | The word enhancement mode is associated with |
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Answer: Option B Explanation: MOSFET may be depletion mode or enhancement mode. |
8. | Work function of oxide coated cathode is much lower than that of tungsten cathode. |
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Answer: Option A Explanation: Therefore emission current from oxide coated cathode is more. |