# Which of the following copper wires has the greatest resistance?

## Which of the following copper wires has the greatest resistance?

So, D has the greatest resistance.

### Which of the following conductors has the highest resistance?

Resistivity and Temperature Coefficient at 20 C

Material Resistivity ρ (ohm m) Ref
Silver 1.59 3
Copper 1.68 3
Copper, annealed 1.72 2
Aluminum 2.65 1

What type of wire has the least resistance?

A short wire has a lower resistance than a long one*. Resistance is directly proportional to the length of the path through which current flows: R ∝ L. This means the longer the wire, the more resistance.

What are the four things that 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.

## Which wire has more resistance thick or thin?

The resistance of a thin wire is greater than the resistance of a thick wire because a thin wire has fewer electrons to carry the current. The relationship between resistance and the area of the cross section of a wire is inversely proportional .

### What has very high resistance?

Examples: silver, copper, gold and aluminum. Insulators: Materials that present high resistance and restrict the flow of electrons. Examples: Rubber, paper, glass, wood and plastic.

What has the least amount of resistance?

Length. A short wire has a lower resistance than a long one*. Resistance is directly proportional to the length of the path through which current flows: R ∝ L. This means the longer the wire, the more resistance.

What will increase the resistance of a wire?

Decreasing the resistivity of the material the wire is composed of will increase the resistance of the wire. 2. Increasing the length of the wire will increase the resistance of the wire. Decreasing the cross-sectional area of the wire will increase the resistance of the wire.

## Does a thicker wire have more resistance?

The relationship between resistance and wire length is proportional . The resistance of a thin wire is greater than the resistance of a thick wire because a thin wire has fewer electrons to carry the current. The relationship between resistance and the area of the cross section of a wire is inversely proportional .

### Does electricity move faster in thick or thin wires?

The thin wire will conduct electricity, but there is more electrical resistance. The thicker wire is like the four lane highway. There’s a lot less electrical resistance, and as a result, that light bulb burns brighter because more electricity can reach it.

Which wire is thickest?

Gauge Thickness chart & Information:

Gauge -Thickness Dimension inches thick Dimension millimeters thick
30 .010 also known as 10 mil as it is 10/1000 inch thick .25 mm 1/4 mm
36 .005 also known as 5 mil as it is 5/1000 inch thick .125 mm 1/8 mm
38 .004 .101 mm
45-50 .0014 .0007

What causes a wire to have high resistance?

An electric current flows when electrons move through a conductor, such as a metal wire. This makes it more difficult for the current to flow, and causes resistance. The resistance of a long wire is greater than the resistance of a short wire because electrons collide with more ions as they pass through.