Question 1. Solar cells are made of which material?
- a. Conductor
- b. Non conductor
- c. Semiconductor
- d. Superconductor
Answer 1. Option c: Semiconductor
Question 2. Which is one of the principal advantage of using a solar cell given below?
- a. It shows oscillatory motion.
- b. It has metal in the outer area.
- c. It has moving parts.
- d. It has no moving parts
Answer 2. Option d: It has no moving parts
Question 3. Which Electronic component works with the principle of Light to Voltage conversion?
- a. Bridge rectifier
- b. Zener diode
- c. Half-wave rectifier
- d. Solar cells
Answer 3. Option d: Solar cells
Question 4. Solar cells work on the principle of —
- a. Isolation and Opto coupling
- b. Isolation
- c. Photo Voltaic
- d. Opto Coupling.
Answer 4. Option c: Photo Voltaic
Question 5. Solar cells are made of—
- a. Silicon
- b. Steel
- c. Sulphur
- d. Antimony
Answer 5. Option a: Silicon
Question 6. Which device convert optical radiation into electrical energy ?
- a. LED
- b. Photo-detector
- c. Solar cell
- d. P-I-N diode
Answer 6.Option c: Solar Cell
Question 7. A solar cell unit is basically
- a. A semiconductors Triode
- b. A semiconductor Diode
- c. A Junction between two good conductors
- d. None of the above
Answer 7.Option b: A semiconductor Diode
Question 8.A solar cell is a _______
- a. P-type semiconductor
- b. N-type semiconductor
- c. Intrinsic semiconductor
- d. P-N Junction
Answer 8.Option d: P-N Junction
Question 9. What is the difference between Photodiode and Solar cell?
- a. No External Bias in Photodiode
- b. No External Bias in Solar cell
- c. Larger surface area in photodiode
- d. No difference
Answer 9. Option b: No External Bias in Solar cell
Question 10.During the collection of e-h pairs, holes are collected by ________
- a. Front contact
- b. Back contact
- c. Si-wafer
- d. Finger electrodes
Answer 10. Option b: Back contact
Question 11. What is the band gap of Solar Cell.
- a. 0.5 eV
- b. 1 eV
- c. 1.5 eV
- d. 1.9 eV
Answer 11. Option c: 1.5 eV
Question 12.Which of the following should not be the characteristic of the solar cell material?
- a. High Absorption
- b. High Conductivity
- c. High Energy Band
- d. High Availability
Answer 12. Option c: High Energy Band