Bissoy.com
Doctors Medicines MCQs Q&A

Related Questions

If ‘X’ corresponds to a tunnel diode and ‘Y’ to an avalanche diode, then__________
Consider the following diodes: 1. Gunn diode 2. Schottky diode 3. Crystal diode 4. Tunnel diode Which of these can be used as detector diodes?
For a diode the transition capacitance was 15pF. The diode is replaced with another diode of same material with twice cross sectional area. Terminal voltage remains unchanged. The capacitance of new diode is __________
Find the current Ix if the voltage across the diode is 0.5V. The reverse saturation current of diode 10-11A, the cut-in voltage of diode is 0.6V. Assume that the temperature at which diode operates is 25°C. The resistance R1=2KΩ.
From the given circuit diagram, considering the diode to be a silicon semiconductor diode, what is the magnitude of diode current? (Use an appropriate model of the diode)
Avalanche breakdown in zener diode is ______
Consider the following statements regarding the 'Tyndall effect. 1. It is a phenomenon wherein the scattering of a beam of light can be observed. 2. It can be observed when a fine beam of light enters a room through a small hole. 3. It can be observed when sunlight passes through the canopy of a dense forest. Which of the statements given above is/are correct?
Select the option that is true regarding the following two statements labeled Assertion (A) and Reason (R). Assertion (A): Whenever we measure an electrical signal, there are chances of over current which leads to overheating of the meter. In such cases, the meter can be protected by using a semiconductor diode of suitable rating. Reason (R): As soon as the diode is short-circuited, the meter current is diverted through the diode. As a result, the meter is being protected from excess heating.
Assertion (A): A p-n junction diode with low junction depth can be used as a solar cell when illuminated by suitable light (wavelength) at the top thin layer above the junction. Reason (R): A p-n junction diode under no condition can be used as a solar cell. It can be used only as a light-emitting diode for optoelectronic applications.
1. The pin diode consists of two narrow, but highly doped, semiconductor regions separated by a thicker, lightly doped material called the intrinsic region. 2. Silicon is used most often for its power-handling capability and because it provides a highly resistive intrinsic region. 3. The pin diode acts as an ordinary diode at frequencies above 100 MHz. Which of the above statements are correct?