Advertisements
Advertisements
प्रश्न
Write an expression for the electrical power spent in flow of current through a conductor in terms of resistance and potential difference.
Advertisements
उत्तर
Electrical Power , P = `"V"^2/"R"`
APPEARS IN
संबंधित प्रश्न
The values of current I flowing in a given resistor for the corresponding values of potential difference V across the resistor are given below:
| I (amperes) | 0.5 | 1.0 | 2.0 | 3.0 | 4.0 |
| V (volts) | 1.6 | 3.4 | 6.7 | 10.2 | 13.2 |
Plot a graph between V and I and calculate the resistance of that resistor.
What is the SI unit of potential difference?
Potential difference is measured in _________ by using a ___________ placed in ___________ across a component.
What is Ohm's law? Explain how it is used to define the unit of resistance.
How does the resistance of a metallic wire depend on its temperature? Explain with reason.
Write an expression for the electrical power spent in flow of current through a conductor in terms of current and resistance.
What would you suggest to a student if while performing an experiment he finds that the pointer/needle of the ammeter and voltmeter do not coincide with the zero marks on the scales when the circuit is open? No extra ammeter/voltmeter is available in the laboratory.
If P and V are the power and potential of device, the power consumed with a supply potential V1 is:
Define Electric potential.
A negative charge will move from ______ to ______ potential.
