Saved Bookmarks
| 1. |
What is potential difference and resistivity an resistance? |
| Answer» Resistance: Resistance is a property of conductor due to which it resists the flow of electric current through it. Component that is used to resist the flow of electric current in a circuit is called resistor. S.I.\xa0unit\xa0of\xa0resistance\xa0is\xa0ohm.Resistivity : The resistivity of a material is the resistance of a wire of that material of unit length and unit cross-sectional area. The unit for resistivity is the ohm-metre.Potential Difference: The voltage difference between any two points in a circuit is known as Potential Difference and it is this potential difference that makes current flow. | |