Which of the following affects the resistance of objects?

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 are the causes of resistance?

Resistance is caused in a conductor by the free electrons. These free electrons collide with each other and with the ions and atoms that oppose their free movement. This obstruction is known as resistance.

How does resistance depend on nature of material?

The resistance of a length of material is proportional to its length and inversely proportional to the material’s cross sectional area. With a given material, resistance increases with length and decreases with greater cross sectional area.

What are the three main factors that affect the resistance of an object?

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 is the cause of resistance how it depends on temperature?

Electrons flowing through a conductor are impeded by atoms and molecules. The more these atoms and molecules bounce around, the harder it is for the electrons to get by. Thus, resistance generally increases with temperature.

What are the factors on which the resistance of a cylindrical conductor depends?

Answer: resistance depends on length of cylindrical conductor, area of cross section, material of the conductor.

Is resistance depend upon material?

Resistance depends on an object’s size, shape, and material. In Figure 3 below, the cylinder’s resistance is directly proportional to its length l. The longer the cylinder, the higher the resistance. Additionally, the resistance is inversely proportional to the cross sectional area A.

How does the resistance of conductor depends on nature of material of conductor?

Resistance of a conductor is inversely proportional to its area of cross- section. Resistance gets halved and hence more electricity can pass through it.

What factors increase resistance quizlet?

Terms in this set (7)

• Blood viscosity. thickness/stickiness of a fluid; for blood, it’s a function of the # of RBCs.
• INCREASE in Viscosity. INCREASE in Resistance.
• Total length of blood vessels. more blood vessels = greater resistance.
• INCREASE in RBCs.
• Diameter of blood vessels.
• Vasoconstriction.
• Vasodilation.

What causes resistance in a material?

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 .

How does the resistance of an object depend on its material?

The resistance of an object depends directly on the length of the object and the specific resistance or resistivity of the material of which the object is composed and depends inversely on the cross sectional area of the object. Related QuestionsMore Answers Below.

What are the factors that affect the resistance of a conductor?

The resistance of the conductor depends on the following factors: 1 The temperature of the conductor. 2 The cross-sectional area of the conductor. 3 Length of the conductor. 4 Nature of the material of the conductor.

What are the factors affecting the internal resistance of a cell?

The internal resistance of a cell depends on: Nature of the electrolyte: The greater the conductivity of the electrolyte, the lower is the internal resistance of the cell. Separation between the electrodes:

What is resistivity of a material?

Resistivity is a qualitative measurement of a material’s ability to resist flowing electric current. Obviously, insulators will have a higher value of resistivity than of conductors. Was this answer helpful? Thank you.