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JEE Main
IMPORTANT
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In the given circuit the value of is:
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Important Questions on Current Electricity
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JEE Main
IMPORTANT
In the given figure, the emf of the cell is and if internal resistance is . Calculate the power dissipated in the whole circuit:
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JEE Main
IMPORTANT
What equal length of an iron wire and a copper-nickel alloy wire, each of diameter connected parallel to give an equivalent resistance of ?
(Given resistivities of iron and copper-nickel alloy wire are and respectively)
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JEE Main
IMPORTANT
An electric bulb of at is used in a circuit having a supply. Calculate the resistance to be connected in series with the bulb so that the power delivered by the bulb is .
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JEE Main
IMPORTANT
If you are provided a set of resistances, and Connect these resistances to obtain an equivalent resistance of .
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JEE Main
IMPORTANT
Calculate the amount of charge on capacitor of The internal resistance of battery is
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JEE Main
IMPORTANT
Five identical cells each of internal resistance and emf are connected in series and in parallel with an external resistance For what value of current in series and parallel combination will remain the same?
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JEE Main
IMPORTANT
First, a set of equal resistors of each are connected in series to a battery of E.M.F. and internal resistance A current is observed to flow. Then, the resistors are connected in parallel to the same battery. It is observed that the current is increased times, then the value of is ___________.
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JEE Main
IMPORTANT
For full scale deflection of total divisions, voltage is required in galvanometer. The resistance of galvanometer if its current sensitivity is will be:
