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Answer:
1)negative terminal
2)a) heating effect
3)Two or more cell
4)North South direction
5)magnetic effect
Explanation:
1)The symbol for a battery is made by joining two more symbols for a cell together. Think of what we usually call a single battery, like the type you put in a torch. In physics, each of these is actually called a cell . It is only when you have two or more of these cells connected together that you call it a battery
2)An electrical circuit is a path in which electrons from a voltage or current source flow. The point where those electrons enter an electrical circuit is called the "source" of electrons. The point where the electrons leave an electrical circuit is called the "return" or "earth ground".
3)An open circuit is one where the continuity has been broken by an interruption in the path for current to flow. A closed circuit is one that is complete, with good continuity throughout. A device designed to open or close a circuit under controlled conditions is called a switch.
4)bulb, electric heater
5)MCB: It stands for "Miniature Circuit Breaker". CFL: It stands for "Compact Fluorescent Lamp".
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