How do you create potential difference?
The current in a circuit is directly proportional to the electric potential difference impressed across the circuit and inversely proportional to the resistance of the circuit. Reducing the current can be done by reducing the voltage (choice A) or by increasing the resistance (choice D).
What device creates potential difference?
A battery consists of a group of cells to produce a potential difference. A cell is a single unit that makes a battery. A group of cells makes a battery. Both battery as well as a cell help in maintaining a potential difference across a conductor.
Which device is used to maintain potential difference in a circuit?
battery
Name a device that helps to maintain a potential difference across a conductor. Answer: A battery consisting of one or more electric cells is used to maintain a potential difference across a conductor.
Who founded Ohm’s law?
Georg Simon Ohm
Abstract: The “it” in the title refers to what is now known as Ohm’s law. Georg Simon Ohm (1789-1854) lived at a time when there were no calibrated indicators for electric current. There was no volt or amp; these were established much later by the 1881 International Electrical Congress.
Who was ohm Where and when did he live?
Georg Ohm
| Georg Simon Ohm | |
|---|---|
| Born | 16 March 1789 Erlangen, Brandenburg-Bayreuth in the Holy Roman Empire (present-day Germany) |
| Died | 6 July 1854 (aged 65) Munich, Kingdom of Bavaria in the German Confederation (present-day Germany) |
| Nationality | German |
| Alma mater | University of Erlangen |
Why potential difference is different in series?
Therefore the current does not change in a series combination of resistors. However as the resistance of the resistors connected in series combination often have different values, the voltage or the potential difference acting on each of those resistors also varies.