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प्रश्न
The device used for measuring potential difference is
पर्याय
Potentiometer
Ammeter
Galvanometer
Voltmeter
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उत्तर
Voltmeter
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संबंधित प्रश्न
The unit for measuring potential difference is:
The p.d. across a lamp is 12 V. How many joules of electrical energy are changed into heat and light when:
a charge of 5 C passes through it?
Define the unit of resistance (or Define the unit "ohm").
A current of 200 mA flows through a 4 kΩ resistor. What is the p.d. across the resistor?
In the circuit shown below:
The potential difference across the 3 Ω resistor is:
If the potential difference between the end of a wire of fixed resistance is doubled, by how much does the electric power increase?
The following table shows current in Amperes and potential difference in Volts.
Which law will the graph prove? Explain the law.
In the figure given below, A, B and C are three ammeters. The ammeter B reads 0.5A. (All the ammeters have negligible resistance.)
Calculate:
(i) the readings in the ammeters A and C.
(ii) the total resistance of the circuit.
A 10 m long wire of a particular material is of resistance 5Ω What will be the resistance if the wire is doubled itself.
Potential near a charge is the measure of its ______ to bring a positive charge at that point.
