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Symbols of Electric Components

b The combina...

Question

Question 8 (b)
The combination of two or more cells is called a ___.

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Solution

Battery

The combination of two or more cells is called a battery. In the figure, 3 cells are combined and connected electrically in series and have two main terminals: positive and negative terminals. A battery is used as a power source for torches, toys, alarms etc.

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Q. Statement 1: The combination of two or more cells is called a battery.

Statement 2: To make a battery of two cells, the positive terminal of one cell is connected to the positive terminal of the other cell.

Question 8

(i) Our body is a ___ of electricity.
(ii) An electric cell produces electricity from the ___ in it.
(iii) In an electric circuit a fuse is a ___, ___ to prevent possible fire.
(iv) A combination of two more cells is called a ___.

Q. A __________ is a combination of two or more cells connected end to end.

Q. Combination of two or more firms into one firm is called ____________.

Fill in the blanks:

(a) Longer line in the symbol for a cell represents its_________terminal.

(b) The combination of two or more cells is called a _________.

(c) When current is switched ‘on’ in a room heater, it __________.

(d) The safety device based on the heating effect of electric current is called a _________.

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Symbols of Electric Components

Standard VII Physics

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