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State the Function of Each of the Following in an Electric Circuit and Draw Its Symbolic Representation: (1) Switch and (2) Cell. - ICSE Class 7 - Physics

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ConceptSymbolic Representation of Electrical Components (Key,Battery, Bulb, Conducting Wire, Resistor)

Question

State the function of each of the following in an electric circuit and draw its symbolic representation: (1) Switch and (2) Cell.

Solution

 Switch – A switch or key is used to put the circuit on and off. fig. shows the symbol of a switch or key when it is open (to put the circuit off and when it is closed (to put the circuit on)

 Cell – A cell or a group of cells is generally used as a source of electricity. A positive (+) and a negative (-). It is represented by the two vertical lines of unequal lengths. The long vertical line represents the positive terminal and the short line represents the negative terminal as shown in fig

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Solution State the Function of Each of the Following in an Electric Circuit and Draw Its Symbolic Representation: (1) Switch and (2) Cell. Concept: Symbolic Representation of Electrical Components (Key,Battery, Bulb, Conducting Wire, Resistor).
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