Answer the following questions briefly.
2. What is a solar cell? Mention its application,
What is an electric cell? How does it produce an electric current?
3 What do you mean by an electric circuit?
What should the electric wire be made of and why?
5. Which is the metal used to make the filament of an electric bulb?
6 What are conductors and insulators of electricity?
Answers
What is a solar cell? Mention its application,
Answer
Solar cells produce direct current electricity from the sun's rays, which can be used to power equipment or to recharge batteries. Many pocket calculators incorporate a single solar cell, but for larger applications, cells are generally grouped together to form PV modules that are in turn arranged in solar arrays.
What is a solar cell? Mention its application,
Answer
In simple cell battery converts chemical energy into electricity. The chemical reaction produces electrons, which then collect at the negative terminal of the battery. When there is a connection between the positive and negative terminal, the electrons flow to the positive terminal.
What is a solar cell? Mention its application,
Answer
Electric circuit, path for transmitting electric current. An electric circuit includes a device that gives energy to the charged particles constituting the current, such as a battery or a generator; devices that use current, such as lamps, electric motors, or computers; and the connecting wires or transmission lines.
What should the electric wire be made of and why?
Answer
Electrical conductors are made up of metals such as, copper, aluminum, etc. These metals are used to make wires. Most wires are made out of copper because it conducts electricity with high flexibility and very little resistance.
Which is the metal used to make the filament of an electric bulb?
Answer
Tungsten
What are conductors and insulators of electricity?
Answer
Conductors are materials that permit electrons to flow freely from particle to particle. ... Conductors allow for charge transfer through the free movement of electrons. In contrast to conductors, insulators are materials that impede the free flow of electrons from atom to atom and molecule to molecule.
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