- 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 are the factors affecting the resistivity of a wire?
- The resistivity (ρ) of the material from which the conductor is made.
- The total length (L) of the conductor.
- The cross-sectional area (A) of the conductor.
- The temperature of the conductor.
What four factors affect the resistance of a wire and explain how each factor affects the resistance?
length – longer wires have greater resistance
.
thickness
– smaller diameter wires have greater resistance. temperature – heating a wire increases its resistance.
What are the factors that affect the resistance of a material?
Factors That Affect Resistance
How much resistance a material has depends on several factors:
the type of material, its width, its length, and its temperature
. All materials have some resistance, but certain materials resist the flow of electric current more or less than other materials do.
What causes resistance?
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.
What is resistance and factors affecting resistance?
Resistance is the property of the material that restricts the flow of electrons. 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.
What are the factors affecting resistance and resistivity?
- The cross-sectional area of the conductor.
- Length of the conductor.
- The material of the conductor.
- The temperature of the conducting material.
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.
Which factors affect the resistance of a material Brainly?
Answer: Resistance is the property of the material that restricts the flow of electrons. 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
.
What factors affect resistance of a material select 3 options?
The resistance of a given piece of wire depends of three factors:
the length of the wire, the cross-sectional area of the wire, and the resistivity of the material composing the wire
.
Does material affect resistance of wire?
(3) Material:
the material the wire is made out of will affect the resistance
. … There is more resistance in a narrower pipe, as less water can flow through the pipe in a certain length. In a longer pipe, water will take longer to flow through it.
What is the resistance of the wire?
Precisely,
R = V/I
. Thus, if a 12-volt battery steadily drives a two-ampere current through a length of wire, the wire has a resistance of six volts per ampere, or six ohms. The ohm is the common unit of electrical resistance, equivalent to one volt per ampere and represented by the capital Greek letter omega, Ω.
What is resistance in a circuit?
Resistance is
a measure of the opposition to current flow in an electrical circuit
. Resistance is measured in ohms, symbolized by the Greek letter omega (Ω). Ohms are named after Georg Simon Ohm (1784-1854), a German physicist who studied the relationship between voltage, current and resistance.
How does the resistance of a wire depends on its length?
Resistance is
directly proportional to the length of the conductor
. So, as the length increases, the magnitude of resistance increases. … Resistance is inversely proportional to the cross-sectional area of the conductor. Thus, the resistance of the conductor decreased with the decrease in cross-sectional area.
What factors affect the resistance of a metal conductor?
- The temperature of the conductor.
- The cross-sectional area of the conductor.
- Length of the conductor.
- Nature of the material of the conductor.
What increases the resistance of a metal wire in a circuit?
As electrons move through a metal conductor, some collide with atoms, other electrons or impurities. These collisions cause resistance and generate heat.
Heating the metal conductor
causes atoms to vibrate more, which in turn makes it more difficult for the electrons to flow, increasing resistance.
