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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
Assuming VCEsat = 0.2 V and β = 50, find the minimum base current (IB) required to drive the transistor given in the figure to saturation.
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
In the symbol for a transistor, the arrow head points in the direction of the ____________.
In switching circuit, transistor is in ON state. Values of IC and IB are 5.2 mA and 10 µA respectively and value of RC is 1 k`Omega`. If Vcc is at 5.5 V, then VCE is ______.
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In an npn transistor, the collector current is 24 mA. If 80% of electrons reach collector, its base current in mA is ______.
ln switching circuit, transistor is in ON state and values of IC and IB are 4.2 mA and 5 µA respectively and RC= l k`Omega` and RB= 300 k`Omega`. If VBE = 0.5 V, find the value of VBB.
In a silicon transistor, a change of 7.89 mA in the emitter current if produces a change of 7.8 mA in the collector current, then the base current must change by ____________.
For an ideal diode, the current in the following arrangement is ______.
Define β
