Simply Stated: As electrons move across a wire, they constantly collide with atoms making up a wire. These collisions impede the flow of electrons and are what cause the wire to have resistance. Thus, if the diameter of the wire were larger, it would only make sense that the electrons don't collide as much, therefore creating less resistance due to a larger wire. This is all in accordance to Ohm's law. The resistance is the ratio of the voltage difference across an object to the current that passes through the object due to the existence of the voltage difference. If the object is made of a material that obeys Ohm's Law, then this ratio is constant no matter what the voltage difference is.
Consider a copper wire that passes some amount of current, say 1 A, when a voltage difference of 1 V is applied between the ends of the wire. Now consider an identical but separate wire connected across that same 1V potential difference. You would expect that it would also conduct 1 A.
Now think of joining those two wires together side by side into one, thicker wire. It is reasonable to expect that this wire should carry 2 A of current if the potential difference across the wires is still 1 V. Thus, the new, thicker wire will have a reduced resistance of 1/2 Ohm compared to the original wire with its resistance of 1 Ohm.
Basically, a thicker wire creates additional paths for current to flow through the wire.
The longer the conductor the greater the end to end resistance.
The insulation resistance remains the same throughout the entire length of the conductor.
Nothing. Resistivity is a physical characteristic of a material. It's not affected by its shape, etc.
An increase in current will only affect resistance if it causes the temperature of the conductor to change. For pure metallic conductors, and increase in temperature will cause an increase in resistance.
This happens only in pure series circuits, due to increased resistance.
If the length of the conductor increases while the diameter remains constant, the resistance of the conductor will increase. Resistance is directly proportional to the length of the conductor, so a longer conductor will have higher resistance. The diameter, however, does not directly affect resistance as long as it remains constant.
Resistance will decreases... Because R is inversely proportional to Area of the conductor.AnswerIf the conductor has a circular cross-sectional area, then doubling the diameter will reduce the resistance to one quarter of its original distance. This is because area is proportional to the square of the radius, and resistance is inversely proportional to cross-sectional area.
The longer the conductor the greater the end to end resistance.
If the length of the conductor is halved, the resistance of the conductor also decreases by half. This is because resistance is directly proportional to the length of the conductor. Shortening the length leads to fewer collisions between electrons and reduces the overall resistance.
When a conductor is made thinner and longer, its resistivity increases. This is because the thinner diameter and longer length result in more collisions between electrons and atoms, leading to greater opposition to the flow of current, which manifests as increased resistance.
If resistance is increased, current decreases. Ohm's Law: current equals voltage divided by resistance.
Doubling the area of a conductor reduces the resistance by half. This is because resistance is inversely proportional to the cross-sectional area of the conductor. Therefore, doubling the area reduces the resistance, making the conductor more efficient in conducting electricity.
Radius is half of diameter so it increases by 2.
The insulation resistance remains the same throughout the entire length of the conductor.
this is because there will be more collisions between atoms and electrons as there is a greater distance to travel. The longer the length of wire, the more collisions. It is like a traffic jam, the longer the road, the loner you are stuck in it for.
The flow of electrons meets an increased impedance to it's flow.
The flow of electrons meets an increased impedance to it's flow.