Tag: generation of electricity

Questions Related to generation of electricity

The group of solar cells connected in a specific pattern to produce desired magnitude of electric current is called :

  1. solar complex

  2. solar panel

  3. solar battery

  4. none of these


Correct Option: B
Explanation:

Solar panel refers either to a photovoltaic module, a solar hot water panel, or to a set of solar photovoltaic (PV) modules electrically connected and mounted on a supporting structure. A PV module is a packaged, connected assembly of solar cells. Solar panels can be used as a component of a larger photovoltaic system to generate and supply electricity in commercial and residential applications.

The energy which cooks food in a box type solar cooker is :

  1. heat energy only

  2. light energy only

  3. both heat and light energy

  4. none of these


Correct Option: A
Explanation:

In the box type solar cooker, the heat from the sunlight is used to cook the food.

Water cannot be heated using a solar water heater on a.

  1. windy day

  2. sunny day

  3. cloudy day

  4. hot day


Correct Option: C
Explanation:

Solar water heater works on solar radiation falling on it. It requires solar light for generating enough heat to heat water. During cloudy days, Sun is obstructed by clouds, and the light incident of the solar panels will be inefficient to make the heater work.

A solar cell converts :

  1. electrical energy into heat energy

  2. mechanical energy into electrical energy

  3. chemical energy into electrical energy

  4. none of these


Correct Option: D

How is solar energy converted to electrical energy?

  1. Using solar heating device

  2. Using solar cell

  3. Both A and B

  4. None of the above


Correct Option: C
Explanation:

Solar heating device first converts heat energy of Sun to heat up a substance, which is then converted to electrical energy.

Solar cell converts light energy of Sun to electrical energy.