Advertisements
Advertisements
प्रश्न
The light emitted in an LED is due to
पर्याय
Recombination of charge carriers
Reflection of light due to lens action
Amplification of light falling at the junction
Large current capacity
Advertisements
उत्तर
Recombination of charge carriers
APPEARS IN
संबंधित प्रश्न
Which method of biasing is used for operating a transistor as an amplifier?
The output of the following circuit is 1 when the input ABC is

In a common emitter amplifier, the input resistance is 1000 Ω, the peak value of Input signal voltage is 5 mV, and β = 60. The peak value of output current is
A transistor has a voltage gain A. If the amount βA of its output is applied to the input of the transistor, then the transistor becomes oscillator, when ______.
A common emitter amplifier is designed with n-p-n transistor (α = 0.99). The input impedance is 1 kΩ and the load is 10 kΩ. The voltage gain will be ______
The condition to convert an amplified signal into an oscillating signal is ______
A transistor having α = 0.8 is connected in common emitter configuration. When the base current changes by 6 mA, then the change in collector current is ______.
Ve, Vb, and Ve are emitter, base, and collector voltage respectively for npn transistor in CE mode. Amplifier works for the combination of biasing voltage equal to ______.
Which of the following regions of a transistors are, respectively, heavily dopped and lightly dopped?
The reverse bias in a junction diode is changed from 8V to 13V, then the value of the current changes from 40μA to 60μA. The resistance of junction diode will be ______.
