Why does current decrease as length increases?

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. When resistance is increased in a circuit , for example by adding more electrical components , the current decreases as a result.

What happens to current if the length of the wire increases?

When the length of wire is longer, the current has to travel more distance and face more obstacles. The space of the elctrons to travel increases when cross sectional area is increased. …

Does current increase or decrease with length?

As the length increases, resistance increases, as a result current decreases.

How does increasing the length of a wire affect a circuit?

First, the total length of the wires will affect the amount of resistance. The longer the wire, the more resistance that there will be. More collisions mean more resistance. Second, the cross-sectional area of the wires will affect the amount of resistance.

When the length of a conductor increases its resistance?

EXPLANATION: Here, the resistance of a conductor is directly proportional to the length of the conductor and inversely proportional to the area of the cross-section of the conductor. So if we increase the length then the resistance will increase.

How does length affect current?

L is the length of the conductor and A is the cross sectional area of the conductor. If everything is kept constant here, increasing the length would increase the resistance of the wire. Increased resistance means decrease in current flow.

Does current rating depend on length?

(ii) The current rating of the fuse wire does not depend on its length.

Does current decrease with length?

So if the length increases then the resistance will also increase in proportion to the length and the current will decrease. As the resistance of a material increases so too must the force required to drive the same amount of current.

Why resistance of a conductor increases with increase in length?

when you have longer length of wire, the current has to travel more distance, more the distance higher the number of obstacles it faces through its path. Therefore resistance increases with the length. When cross sectional area increases the space of the elctrons to travel increases(simply explained).

What happens to conductivity when the length of the conductor decreases?

The resistance of a conductor is directly proportional to its length (L) as R ∝ L. Thus doubling its length will double its resistance, while halving its length would halve its resistance. Also the resistance of a conductor is inversely proportional to its cross-sectional area (A) as R ∝ 1/A.

What will happen if we increase the length of a conductor?

Hope this answers your question. If we increase the length of a conductor by 2 times, what will be its resistance? As a wire gets longer its resistance increases, and as it gets thinner its resistance also increases because its cross sectional area decreases.

What happens when the resistance of a circuit increases?

When resistance increases, the circuit current decreases and vice versa. Inductance is directly proportional to the inductive reactance.

What happens to the resistance of a wire when it is stretched?

As a wire gets longer its resistance increases, and as it gets thinner its resistance also increases because its cross sectional area decreases. Doubling the length will double the resistance, but the wire also must get thinner as it is stretched, because it will contain the same amount of metal in twice the length.

What is the relation between resistance and length?

Resistance is directly proportional to length. As we know from the formula R= (resistivity*length)/area. With increase in length, resistance also increases. As length of wire increases the flow of current increases there by no of obstacles also increases and therefore resistance increases