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प्रश्न
What is meant by the earthing of an electroscope?
टीपा लिहा
उत्तर
Earthing of an electroscope is meant to take the thick copper strip inside the earth so that charges induced from thunderstorms on the metal spikes can move to earth to safeguard buildings from thunderstorms.
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Types of Circuits: Simple Circuit
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संबंधित प्रश्न
Write symbol and state function of following component in an electric circuit :
rheostat
A cell of potential difference 12 V is connected to a bulb. The resistance of filament of bulb when it glows is 24Ω. Find the current drawn from the cell.
A current 0.2 A flows in a wire of resistance 15Ω. Find the potential difference across the ends of the wire.
State SI unit of electric charge and define it.
What do you understand by the term electric current?
How electric current flows in solids?
How is potential difference related to work done and quantity of charge?
What is the origin of frictional forces?
What is the net charge on an atom?
Explain the following:
Potential difference
