ICSE /Class 7
Physics MCQ Based On Battery as a collection of cells connected in series
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ICSE Class 7 Physics Battery as a collection of cells connected in series
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Primary batteries are designed to be used until exhausted of energy then discarded. Their chemical reactions are generally not reversible, so they cannot be recharged. When the supply of reactants in the battery is exhausted, the battery stops producing current and is useless.
In a torch we use dry cell as the source of electricity.
A combination of two or more cells is a battery.
Secondary batteries can be recharged; that is, they can have their chemical reactions reversed by applying electric current to the cell. This regenerates the original chemical reactants, so they can be used, recharged, and used again multiple times.
Think of examples of conductor
number of cells multiplied by the voltage of one cell.
it only powers small appliances.
number of cells multiplied by the voltage of one cell.
A group of two or more cells is called a battery.
A torch bulb glows if the terminals of the bulb are connected to the terminals of a cell by the metallic wire.
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