I-V Characteristics of LED, Photodiode, Solar Cell and Zener Diode

Which of the following is/are correct

(i) The symbol  for zener diode is



(ii) The reverse I – V characteristics of a zener diode.

Solar cells are made of $:$

What is the order of the reverse saturation current before breakdown in a zener diode?

Solar cell is a photodiode operated at

Identify characteristics are given below, in the order (i), (ii), (iii), (iv):
i.        ii.

iii.      iv.

Which of the characteristic curve are correct.

$\left(\mathrm{A}\right)$ Photodiode for $I_2>I_1$

$\left(\mathrm{B}\right)$ Solar cell

$\left(\mathrm{C}\right)$ L.E.D.

The reading corresponding to zener diode are given below in the table. From given table, determine the reverse breakdown voltage of the zener diode.

The NOR gate is OR gate followed by 

Which of the following is not true in the uses of LEDs over conventional incandescent bulb.

Solar cell is a photodiode operated at

In the figure shown, the currents through the zener diode and load resistance are respectively

Avalanche breakdown in a $\mathrm{P}-\mathrm{N}$ junction diode is due to :-

If $a p-n$ junction diode is not connected to any circuit :-

Photodiodes are also known as

The emission of electrons from the host atoms due to the high electric field in a zener diode is known as

Field ionisation is also known as:

Identify the symbol for avalanche diode from the following.

The current flowing in the photodiode is independent of

The V-I characteristics of LED is similar to the characteristics of

Among the following, the one that is showing the characteristics of a Zener diode is