Electricity
Jharkhand Board · Class 10 · Science
Most important questions from Electricity for Jharkhand Board Class 10 Science board exam 2026. MCQs, short answer, and long answer questions with marks.
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In a series circuit, what happens to the current?
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Current is the same in all components
In a series circuit, the current remains constant throughout the circuit at all points.
What generates potential difference in a cell?
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Chemical reaction
Chemical reactions within a cell generate the potential difference between its terminals.
What is the commercial unit of electrical energy?
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Kilowatt hour
Kilowatt hour (kWh) is the commercial unit of electrical energy, commonly known as a 'unit'.
Which metal is commonly used for electric bulb filaments?
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Tungsten
Tungsten is used for bulb filaments due to its high melting point (3380°C) and ability to retain heat.
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