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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
The device used for measuring potential difference is known as:
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?
Keeping the potential difference constant, the resistance of a circuit is halved. By how much does the current change?
Calculate the power used in the 2 Ω resistor in each of the following circuits: a 6 V battery in series with 1 Ω and 2 Ω resistors.
The following table shows current in Amperes and potential difference in Volts.
What will be the nature of the graph between the current and potential difference? (Do not draw a graph.)
A current of 0.2 A flows through a wire whose ends are at a potential difference of 15 V. Calculate:
(i) The resistance of the wire, and
(ii) The heat energy produced in 1 minute.
An electric bulb draws 0.5 A current at 3.0 V. Calculate the resistance of the filament of the bulb.
100 J of heat is produced each second in a 4 Ω resistor. The potential difference across the resistor will be:
What does the positive and negative sign of potential convey?
