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प्रश्न
If the two ends of a p-n junction are joined by a wire,
पर्याय
there will not be a steady current in the circuit
there will be a steady current from the n-side to the p-side
there will a steady current from the p-side to the n-side
there may or may not be a current depending upon the resistance of the connecting wire
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उत्तर
there will not be a steady current in the circuit
In a p‒n junction, current flows only if it is connected to the battery. If two ends of a p‒njunction are joined by a wire, then there will be diffusion and drift currents in the circuit and they will cancel each other. Hence, no current will flow in the circuit.
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संबंधित प्रश्न
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Explain, with the help of a circuit diagram, the working of n-p-n transistor as a common emitter amplifier.
The drift current in a reverse-biased p-n junction is increased in magnitude if the temperature of the junction is increased. Explain this on the basis of creation of hole-electron pairs.
The drift current in a p-n junction is
The diffusion current in a p-n junction is
Two identical p-n junction may be connected in series with a battery in three ways. The potential difference across the two p-n junctions are equal in
In a p-n junction with open ends,
(a) there is no systematic motion of charge carries
(b) holes and conduction electrons systematically go from the p-side to n-side and from the n-side to p-side respectively
(c) there is no net charge transfer between the two sides
(d) there is a constant electric field near the junction.
In a p-n junction,
(a) new holes and conduction electrons are produced continuously throughout the material
(b) new holes and conduction electrons are produced continuously throughout the material except in the depletion region
(c) holes and conduction electrons recombine continuously throughout the material
(d) holes and conduction electrons recombine continuously throughout the material except in the depletion region.
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(Use Planck constant h = 4.14 × 10-15 eV-s, Boltzmann constant k = 8·62 × 10-5 eV/K.)
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(Assume that the resistance of each diode is zero in forward bias and is infinity in reverse bias.)
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A diode, a resistor and a 50 Hz AC source are connected in series. The number of current pulses per second through the resistor is __________ .
Choose the correct option.
Current through a reverse-biased p-n junction increases abruptly at:
Zener breakdown occurs in a p-n junction having p and n both:
Diode and resistance are connected as shown in figure. Out of the following statements which one is TRUE?
