Tag: alternate sources of energy

Quizzes (0) Questions (62)

Questions Related to alternate sources of energy

Multiple choice physics solar equipment production of electricity from solar energy solar power alternate sources of energy solar power plant solar energy and its applications renewable and non-renewable resources renewable and non-renewable sources of energy generation of electricity

Two identical immersion heaters are to be used to heat water, in a large container. Which one of the following arrangement would heat the water faster :
Give reasons for your answer.

  1. Connecting the heaters in series with the main supply,

  2. Connecting the heaters in parallel with the main supply,

  3. Connecting the heaters in series and parallel with the main supply,

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When immersion heaters are connected in parallel, each heater receives the full mains voltage, resulting in a higher total power output (P = V^2 / R) compared to a series connection where the voltage is divided. Higher power means water is heated faster.

Multiple choice physics solar equipment production of electricity from solar energy solar power alternate sources of energy solar power plant solar energy and its applications renewable and non-renewable resources renewable and non-renewable sources of energy generation of electricity

Which of the following is used in solar cooker to harvest the solar energy?

  1. Solar panels

  2. Silicon cell

  3. Mirrors

  4. Glass lid
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Solar cookers use concave or flat reflectors (mirrors) to concentrate sunlight onto a cooking vessel, maximizing the harvested solar energy.