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प्रश्न
Which one of the following is the correct set-up for studying the dependence of the current on the potential difference across a resistor and why?
उत्तर
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संबंधित प्रश्न
Potential difference is measured in _________ by using a ___________ placed in ___________ across a component.
How is a voltmeter connected in the circuit to measure the potential difference between two points? Explain with the help of a diagram.
Define the unit of resistance (or Define the unit "ohm").
What current will be taken by a 920 W appliance if the supply voltage is 230 V?
Explain the analogy between the flow of charge (or current) in a conductor under a potential difference with the free fall of a body under gravity.
State whether the potential is a scalar or vector?
Explain why potential difference is always less than the e.m.f. of a cell?
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.
What does the positive and negative sign of potential convey?
