Which one of the following is not true for the photodiodes?
1. | The current in the forward bias is more than the current in the reverse bias. |
2. | Photodiodes are preferably used in the reverse bias condition for measuring light intensity. |
3. | Photodiodes are preferably used in the forward bias condition for measuring light intensity |
4. | In photodiodes, only a small portion of the incident photons gets converted to electric current. |
Which material is preferred for solar cells?
1. \(\text{Si}\)
2. \(\text{GaAs}\)
3. \(\text{CdS}\)
4. both \(\text{Si}\) and \(\text{GaAs}\)