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प्रश्न
Three electric cells of potential difference 1.5 V each have been connected as a battery. The potential differences of the battery will be ____________ V.
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उत्तर
Three electric cells of potential difference 1.5 V each have been connected as a battery. The potential differences of the battery will be 1.5 + 1.5 + 1.5 = 4.5 V.
संबंधित प्रश्न
Name a device that helps to maintain a potential difference across a conductor.
State the S.I. unit of electric potential.
Write an expression for the electrical power spent in flow of current through a conductor in terms of resistance and potential difference.
An electric bulb draws 0.5 A current at 3.0 V. Calculate the resistance of the filament of the bulb.
Two bulbs are marked 100 W, 220 V and 60 W, 110 V. Calculate the ratio of their resistances.
Potential near a charge is the measure of its ______ to bring a positive charge at that point.
A current of 1 ampere flows in a series circuit containing an electric lamp and a conductor of 5 Ω when connected to a 10 V battery. Calculate the resistance of the electric lamp.
Now if a resistance of 10 Ω is connected in parallel with this series combination, what change (if any) in current flowing through 5 Ω conductor and potential difference across the lamp will take place? Give reason.
An electric charge always flows from a point at a ______ to a point at a ______.
Twenty-seven drops of the same size are charged at 220 V each. They combine to form a bigger drop. Calculate the potential of the bigger drop.
Find the potential difference required to flow a current of 300 mA in a wire of resistance 20 Ω.
