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## What is resistance of conductor Class 10?

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. In practical applications, resistors are used to increase or decrease the electric current.

## What is meant by electrical resistance of a conductor state how resistance of a conductor?

State how resistance of a conductor is affected when. (i) a low current passes through it for a short duration. (ii) a heavy current passes through it for about 30 seconds. Electric resistance of a conductor is **the obstruction offered by the conductor to the flow of the current through it**.

## What is electric resistance and its unit?

Electric resistance has the dimension length squared mass per time cubed electric current squared. The SI derived unit of electric resistance is **the ohm**, which is defined as a volt per ampere.

## What is resistance and its unit?

Resistance is the hindrance offered by an object to the flow of current through it. … SI unit of resistance is **Ohm (Ω)**. It is resistance offered by an object when 1 volt potential difference is applied across it and 1 Ampere of current passes through it.

## What is the resistance formula?

**Resistance** has units of ohms (Ω), related to volts and amperes by 1 Ω = 1 V/A. There is a voltage or IR drop across a resistor, caused by the current flowing through it, given by V = IR.

## What factors affect electrical resistance?

**There are several factors that affect the resistance of a conductor;**

- material, eg copper, has lower resistance than steel.
- length – longer wires have greater resistance.
- thickness – smaller diameter wires have greater resistance.
- temperature – heating a wire increases its resistance.

## What are the factors on which resistance of conductor depends?

The resistance of a conductor depends on **the cross sectional area of the conductor, the length of the conductor, and its resistivity**. It is important to note that electrical conductivity and resistivity are inversely proportional, meaning that the more conductive something is the less resistive it is.