Question
When a p-n diode is reverse biased, then
✓
Answer
(b) the depletion region is increased
Explanation: When a p-n junction is reverse biased, its depletion region is widened.
Explanation: When a p-n junction is reverse biased, its depletion region is widened.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Which one of the following has maximum penetrating power ?
A proton (mass m and charge +e) and an α - particle (mass 4m and charge +2e) are projected with the same kinetic energy at right angles to the uniform magnetic field. Which one of the following statements will be true(a) The α - particle will be bent in a circular path with a small radius that for the proton(b) The radius of the path of the α - particle will be greater than that of the proton(c) The α - particle and the proton will be bent in a circular path with the same radius(d) The α - particle and the proton will go through the field in a straight line
In a hydrogen discharge tube it is observed that through a given cross$-$section $3.13 \times 10^{15}$ electrons are moving from right to left and $3.12 \times 10^{15}$ protons are moving from left to right. What is the electric current in the discharge tube and what is its direction
→How does the red shift confirms that the universe is expanding (a) Due to Wien's law(b) Due to Stefan's law(c) Due to Kirchhoff's law(d) Due to Doppler's effect
The angle of polarisation for any medium is $60^{\circ}$, what will be critical angle for this
→Photons absorbed in matter are converted to heat. A source emitting n photon/sec of frequency ν is used to convert 1kg of ice at 0°C to water at 0°C. Then, the time T taken for the conversion:
Consider a wheel of a bicycle rolling on a level road at a linear speed $v_0:$
→
- The speed of the particle $A$ is zero.
- The speed of $B, C$ and $D$ are all equal to $v_0.$
- The speed of $C$ is $2v_0.$
- The speed of $B$ is greater than the speed of $O.$
Three electric bulbs of rating $60 \mathrm{W}$ each are joined in series and then connected to electric mains. The power consumed by these three bulbs will be
→When a photon stimulates the emission of another photon, the two photons have:
- Same energy.
- Same direction.
- Same phase.
- Same wavelength.
- All of the above
ECG is a method of diagnosis used to check the functioning of heart, it is based on the principle that there is: