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प्रश्न
Write proper word from the following group of words in the blank.
(magnetism, 4.5V, 3.0V, gravitational attraction, potential difference, potential, higher, lower, 0V)
Water in the waterfall flows from a higher level to the lower level because of ______.
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उत्तर
Water in the waterfall flows from a higher level to the lower level because of gravitational attraction.
संबंधित प्रश्न
What is meant by saying that the electric potential at a point is 1 volt?
Keeping the resistance constant, the potential difference applied across the ends of a component is halved. By how much does the current change?
What is Ohm's law? Explain how it is used to define the unit of resistance.
What current will be taken by a 920 W appliance if the supply voltage is 230 V?
If the potential difference between the ends of a fixed resistor is halved, the electric power will become:
Explain the statement ‘the potential difference between two points is 1 volt’.
The differences between the electrostatic potential of the positive end the negative end of an electric cell is the ______ of the cell.
From the following observations taken while determining the resistance of a conductor, draw the current-voltage graph and calculate the resistance of conductor. Is the conductor ohmic?
| Ammeter reading I (in ampere) | Voltmeter reading V (in volt) |
| 0.2 | 0.4 |
| 0.3 | 0.6 |
| 0.5 | 1.0 |
| 0.8 | 1.6 |
| 1.5 | 3.0 |
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.
If P and V are the power and potential of device, the power consumed with a supply potential V1 is:
