MCQ
In a $P N$-junction diode
  • The current in the reverse biased condition is generally very small
  • B
    The current in the reverse biased condition is small but the forward biased current is independent of the bias voltage
  • C
    The reverse biased current is strongly dependent on the applied bias voltage
  • D
    The forward biased current is very small in comparison to reverse biased current

Answer

Correct option: A.
The current in the reverse biased condition is generally very small
In forward biased $P N$-junction, external voltage decreases the potential barrier, so current is maximum. While in reversed biased $P N$-junction, external voltage increases the potential barrier, so the current is very small.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Two spheres made of same substance have diameters in the ratio $1 :2.$ Their thermal capacities are in the ratio of
The length of second's hand in a watch is $1 cm$. The change in velocity of its tip in 15 seconds is
A $12 V$ lead accumulator is being charged using $24 V$ supply with an external resistance $2 \Omega$. The internal resistance of the accumulator is $1 \Omega$. Find the time in which it will store $360 W$-hour energy.
A magnet makes $40$ oscillations per minute at a place having magnetic field intensity of $0.1 \times 10^{-6} . T$. At another place, it takes $2.5 \mathrm{sec}$ to complete one vibration. The value of earth's horizontal field at that place is
A short-circuited coil is placed in a time-varying magnetic field. Electrical power is dissipated due to the current induced in the coil. If the number of turns were to be quadrupled and the wire radius halved, the electrical power dissipated would be
There are three sources of sound of equal intensity with frequencies $400,401$ and $402 \mathrm{vib} / \mathrm{sec}$. The number of beats heard per second is
If the radius of curvature of the path of two particles of same masses are in the ratio $1: 2$, then in order to have constant centripetal force, their velocity, should be in the ratio of
A particle is performing simple harmonic motion with amplitude $A$ and angular velocity $\omega$. The ratio of maximum velocity to maximum acceleration is
If the momentum of a body is increased by $100 \%$, then the percentage increase in the kinetic energy is
Of two masses of $5 \mathrm{~kg}$ each falling from height of $10 \mathrm{~m}$, by which $2 \mathrm{~kg}$ water is stirred. The rise in temperature of water will be