ICSE 2009 Solved Important Papers of Physics By Mr. M.P.Keshari
ICSE Guess > ICSE Papers > Important Questions > Class X > 2009 > Physics > Physics By Mr. M.P.Keshari
Current Electricity (Solved)
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Question .1. Distinguish between terminal potential difference and emf of a cell.
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Question .2. State the energy changes occurring in an electric cell.
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Question .3. State Ohm’s law.
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Question .4. Calculate the equivalent resistance of the following combination of resistors.
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Question .5. Write an expression for the resistance of a conducting wire in terms of its length and area of cross section.
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Question .6. Define the emf E of a cell and the potential difference V across a resistor R in terms of work done in moving a unit charge. State the relation between these two works and the work done in moving a unit charge through a cell connected across the resistor. Take the internal resistance of the cell as r. Hence obtain an expression for the current I in the circuit.
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Question .7. Mention two factors on which the internal resistance of a cell depends.
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Question .8. Mention two factors on which the resistance of a wire depends.
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Paper By Mr. M. P. Keshari [ For Further Enquiry 09434150289]
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