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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
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उत्तर
Recombination of charge carriers
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संबंधित प्रश्न
Draw the circuit diagram to study the characteristic of the transistor in common emitter mode. Draw the input and output characteristics.
What is rectification?
A transistor of α = 0.99 and VBE = 0.7 V is connected in the common-emitter configuration as shown in the figure. If the transistor is in the saturation region, find the value of collector current.
Least doped region in a transistor ____________.
If `alpha`-current gain of a transistor is 0.98. What is the value of `beta`- current gain of the transistor?
A pnp transistor is used in common-emitter mode. If a change of 40 µA in base current brings a change of 2 µA in collector current with 0.04 V in base-emitter voltage, then the input resistance is ____________.
In transistor amplifier, base-emitter junction is forward biased and collector emitter junction is reverse biased. The current gain is ______.
In a study of transistor as an amplifier, the ratio of collector current to emitter current is 0.98. The collector current is 3mA, then base current will be approximately ______.
For a transistor, αdc and βdc are the current ratios, then the value of `(beta_"dc"-delta_"dc")/(alpha_"dc".beta_"dc")`
Explain the output characteristics of common emitter configuration of n-p-n transistor.
