# What will increase the resistance of a wire?

## What will increase the resistance of a wire?

length – longer wires have greater resistance. thickness – smaller diameter wires have greater resistance. temperature – heating a wire increases its resistance.

## What are three ways to increase resistance in a wire?

Resistance of a wire increases with decreasing cross sectional area, increasing length and increasing temperature. The material it is made out of also determines what a wires resistance is.

## What 3 things affect a wires resistance?

There are four factors affecting resistance which are Temperature, Length of wire, Area of the cross-section of the wire, and nature of the material. The property of a material that restricts the flow of electrons is called resistance.

## Which change will increase the resistance of a copper wire?

The resistance of a copper wire increases when the diameter decreases. Explanation: The resistance of copper is inversely proportional to the diameter of the wire hence when diameter decreases the resistance of a copper wire increases.

## What would increase the resistance of a wire?

A)Increasing the length of the wire will increase the resistance of the wire.

## What 4 factors affect the resistance of a wire?

There are 4 different factors which affect resistance:

• The type of material of which the resistor is made.
• The length of the resistor.
• The thickness of the resistor.
• The temperature of the conductor.

## How do you add resistance to a wire?

Resistance of a wire increases with decreasing cross sectional area, increasing length and increasing temperature. The material it is made out of also determines what a wires resistance is.

## How do you increase resistance in a wire?

The resistance in a wire increases as:

• the length of the wire increases.
• the thickness of the wire decreases.

## What are three ways to decrease resistance in a wire?

Changing the material, increasing the cross section area, lowering the temperature, and using a thicker wire are some of the ways to reduce resistance.

## What 3 factors determine the resistance in a wire?

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 3 factors affect the resistance of a resistor?

Factors that affect resistors

• The type of material of which the resistor is made.
• The length of the resistor.
• The thickness of the resistor.
• The temperature of the conductor.

## What causes resistance in a wire?

An electric current flows when electrons move through a conductor, such as a metal wire. The moving electrons can collide with the ions in the metal. This makes it more difficult for the current to flow, and causes resistance. The relationship between resistance and wire length is proportional .

## What has an effect on wire resistance?

First, the total length of the wires will affect the amount of resistance. The longer the wire, the more resistance that there will be. Second, the cross-sectional area of the wires will affect the amount of resistance. Wider wires have a greater cross-sectional area.

## Which action would increase the resistance of a copper wire?

Increasing the length of the wire will increase the resistance of the wire.

## How can you increase the resistance of copper?

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 change in a wire will increase its resistance?

Since the resistance of some conductor, such as a piece of wire, depends on collisions within the wire itself, the resistance depends on temperature. With increasing temperature, the resistance of the wire increases as collisions within the wire increase and slow the flow of current.

## How does copper wire affect resistance?

More collisions mean more resistance. Second, the cross-sectional area of the wires will affect the amount of resistance. Wider wires have a greater cross-sectional area.
Variables Affecting Electrical Resistance.
Material Resistivity (ohm•meter)
Copper 1.7 x 108
Gold 2.2 x 108
Aluminum 2.8 x 108
Tungsten 5.6 x 108