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प्रश्न
State two disadvantages of producing electricity from solar energy.
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उत्तर
Disadvantages of using solar panels:
1. The initial cost of a solar panel is sufficiently high.
2. The efficiency of conversion of solar energy to electricity is low.
3. A solar panel produces d.c. electricity which cannot be directly used for many household purposes.
संबंधित प्रश्न
What is nuclear energy?
Write an expression for the potential energy of a body of mass m placed at a height h above the earth's surface. State the assumptions made, if any.
Select the renewable and non-renewable sources of energy from the following:
Diesel
What is solar energy?
What is the main energy transformation that occur in:
Charging of a battery.
State the energy changes which take place when:
A battery lighting up a bulb.
Give one example when:
Electric energy changes to potential energy.
A ball of mass 200 g falls from a height of 5 m. What will be its kinetic energy when it just reaches the ground? (g = 9.8 m s−2)
Nuclear fission is
