What is resistance and how is it calculated
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Resistance is measured in ohms. It can be calculated from the potential difference across a component and the current flowing through it. The total resistance of a series circuit is the sum of the resistances of the components in the circuit. It measured by a instrument called the 'ohmmeter'.
Thank you,
Aku47.
Thank you,
Aku47.
Answered by
231
Heya!!
Here is your answer.
Q-
Ans:-The electric resistance of a material is the measure of hindrance it creates to the flow of electric current.
Read the following points to understand it better.
✨The magnitude of the current produced depends on its resistance.
✨The lower the resistance, the greater is the current.
✨Materials like metals have a very low resistance.So they conduct electricity well and are called good conductors or simply, conductors.
✨ Materials like wood, plastics, runner and mica conduct almost no electricity.They are called bad conductors or insulators.They have a very high resistance.
✨There is no material which has no resistance.But, there are many materials like coal which have very low resistance.
✨ Resistance does not only depend only on materials. It also depends on the thickness and length of the material used.
✨A thin wire has higher resistance than a thick wire and a long wire has a higher resistance than a short wire.
Q-
Ans:-We measure electrical resistance in OHMS.
Q-
Ans:- We measure the resistance of a material by an instrument called the ohmmeter.
⭐ Hope you understood ⭐
Here is your answer.
Q-
Ans:-The electric resistance of a material is the measure of hindrance it creates to the flow of electric current.
Read the following points to understand it better.
✨The magnitude of the current produced depends on its resistance.
✨The lower the resistance, the greater is the current.
✨Materials like metals have a very low resistance.So they conduct electricity well and are called good conductors or simply, conductors.
✨ Materials like wood, plastics, runner and mica conduct almost no electricity.They are called bad conductors or insulators.They have a very high resistance.
✨There is no material which has no resistance.But, there are many materials like coal which have very low resistance.
✨ Resistance does not only depend only on materials. It also depends on the thickness and length of the material used.
✨A thin wire has higher resistance than a thick wire and a long wire has a higher resistance than a short wire.
Q-
Ans:-We measure electrical resistance in OHMS.
Q-
Ans:- We measure the resistance of a material by an instrument called the ohmmeter.
⭐ Hope you understood ⭐
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