Please select a subject first
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What do you mean by the potential difference? Write its SI unit.
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Is electric current a scalar quantity?
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State the factors on which the electrical resistance of a wire depends.
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What is the SI unit of resistance?
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A bulb is connected to a cell. How is the resistance of circuit affected if another identical bulb is connected (i) in series, (ii) in parallel, with the first bulb?
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'The resistance of a wire is 2 ohm'. Explain the meaning of this statement.
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State three factors on which the resistance of a wire depends. Explain, how does the resistance depend on the factors stated by you.
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A wire of resistance 1 Ω is stretched to double its length. What will happen to the resistance of the stretched wire?
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What amount of work is required in moving 3 C charge through a potential difference of 6 V?
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What is the physical meaning of resistance?
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Explain the following:
Potential difference
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Compare the brightness of two 60 watt bulbs.
When they are connected in series.
Explain giving scientific reasons.
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Compare the brightness of two 60 watt bulbs.
When they are connected in parallel.
Explain giving scientific reasons.
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What do you understand by the term inertia?
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