Batteries MCQ - Electrician (Set-1) with Answers

Batteries MCQ - Electrician (Set-1) with Answers

136) The primary cell which has the longest life is :

Answer is:

Lithium cell

137) An example of active photo semiconductor is :

Answer is:

Photo voltaic cells

138) The material used in solar cell as positive output terminal is :

Answer is:

nickel plated ring

139) The material used as negative output terminal of solar cell is :

Answer is:

button plating

140) In a online UPS system, the switch over time from mains to battery is :

Answer is:

zero seconds