Chapter 19: Problem 2645
Which of the following logic gate will have output \(1 ?\)
Chapter 19: Problem 2645
Which of the following logic gate will have output \(1 ?\)
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A potential barrier of \(0.6 \mathrm{~V}\) exists across a P-N junction. If the depletion region is \(1 \mu \mathrm{m}\) wide, what is the intensity of electric field in the region? (A) \(4 \times 10^{5} \mathrm{Vm}^{-1}\) (B) \(5 \times 10^{5} \mathrm{Vm}^{-1}\) (C) \(6 \times 10^{5} \mathrm{Vm}^{-1}\) (D) \(2 \times 10^{5} \mathrm{Vm}^{-1}\)
The load voltage is approximately constant when a zener diode is (A) Forward biased (B) Reverse biased (C) Operating in breakdown region (D) Unbiased
Direction for Assertion - Reason type questions (A) If both Assertion and Reason are true and reason is the correct explanation of assertion. (B) If both Assertion and Reason are true but Reason is not the correct explanation of assertion. (C) If Assertion is true but Reason is false (D) If both assertion and reason are false A: The ionization energy of isolated phosphorous is very large \(\mathrm{R}\) : The ionization energy of phosphorous in lattice is very small (A) a (B) \(b\) (C) \(\mathrm{c}\) (D) \(\mathrm{d}\)
A n-p-n transistor is used in common emitter made in an amplifier it. A change of \(40 \mu \mathrm{A}\) in the base current changes the output current by $2 \mathrm{~mA}\( and \)0.04 \mathrm{~V}$ in input voltage. The current amplification factor is (A) 20 (B) 30 (C) 50 (D) 400
For normal operation of the transistor, the collector diode has to be (A) Forward biased (B) Reverse biased (C) Non conducting (D) Operating in breakdown region
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