(answer the following question )explain the resistive property of matter by giving suitable example
Answers
Answer:
Resistance is nothing but this property of resisting the flow of electrons or the current. The unit of resistance is ohm. One ohm is equal to volt per ampere. From Ohm’s law, we have seen that R = V / I, Where V is the voltage and I is the current.
Resistors are used to resist or control the flow of electrons by the conductive material. They do not provide any power to the circuit. They may reduce the voltage and current passing through the circuit. Hence, resistors are passive devices. Most of the resistors are made up of carbon, metal or metal oxide film.
Answer:
it means that resistivity does not change as long as the material does not change.
For example, consider copper, it has some resistivity, now it doesn't matter if the copper you choose to measure resistivity is in form of a wire, a ball, a cube, a cylinder, it's resistivity will always remain the same.
But, resistance does depend on the shape of the body and thus we can say resistance is a property of object. It means that for the same material, say copper, resistance measured will be different for a thick and thin wire, it will change if you change the length,etc.
Explanation: