Why does increasing the length cause an increase in resistance?

Why does increasing the length cause an increase in resistance?

When electrons start to move, they get scattered from the nuclei present in the material which is the wire made from. This process creates the resistance. Thus, when the length of the wire increases, the amount of particles scattered from the nuclei increases which also increases the resistance.

Why does resistance decrease when area increases?

When cross sectional area increases the space of the elctrons to travel increases(simply explained). Therefore less amount of obstacles for the current. Therefore when area increases the resistance decreases.

What is the effect of increasing area on resistance?

On increasing the area of cross-section, resistance decreases. This is because resistance is inversely proportional to area.

Why does cross-sectional area affect resistance?

Resistance is inversely proportional to cross-sectional-area. The bigger the cross sectional area of the wire the greater the number of electrons that experience the ‘electric slope’ from the potenetial difference.

Why is length directly proportional to resistance?

An electric current flows when electrons move through a conductor, such as a metal wire. 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. The relationship between resistance and wire length is proportional .

What will happen to the resistance if the length of the conductor is increased?

Answer: the resistance of a conductor is directly proportional to its length. so if length is increased then resistivity increases ande vice versa. so if length is doubled resistance will also get doubled i.e resistance is 4 times that of original resistance.

Why resistance is directly proportional to length?

As the length increases, the number of collisions by the moving free electrons with the fixed positive ions increases as more number of fixed positive ions are present in an increased length of the conductor. As a result, resistance increases.

Does cross-sectional area affect the resistance?

A more detailed investigation shows that resistance and cross section area are inversely proportional . If you double the cross section area you half the resistance of the wire.

What will happen to the resistance in law of diameter?

Answer: Resistance (R) is inversely proportional to Area(A). So if radius is doubled, new area= 4x Area of original wire. As you can see in the picture if you increase the diameter of the wire then the resistance will decrease .

Is length directly proportional to resistance?

For a given material, resistance and length formula clearly speaks that the resistance is directly proportional to its length. When the length of the material is increased, its value of resistance also increases. When the length of the material decreases, its value of resistance will also decrease.

Why do resistance decrease when area of cross section of a.?

Now, when we applied a certain value of pre-estimated (fixed as per resistance range) source voltage a certain amount of the free electrons from each atom available in that metal excited and ionised resulting which production of charge or say EMF which enables meter to read and we say it is the value of resistance because meter is c

How does the length of a wire affect its resistance?

When electrons start to move, they get scattered from the nuclei present in the material which is the wire made from. This process creates the resistance. Thus, when the length of the wire increases, the amount of particles scattered from the nuclei increases which also increases the resistance.

What happens to the resistance of an electrode when the current increases?

This means that the resistance must have decreased if current increases. But resistance of the electrodes is only related to the length and cross sectional area. The problem does not specifically state any change in length or cross sectional area.

How does the size of a cylinder affect its resistance?

The longer the cylinder, the greater its resistance. The larger its cross-sectional area A, the smaller its resistance. For a given shape, the resistance depends on the material of which the object is composed. Different materials offer different resistance to the flow of charge.

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