What type of relationship exists between the length of wire in the resistance if all other factors remain the same?

What type of relationship exists between the length of wire in the resistance if all other factors remain the same?

HomeArticles, FAQWhat type of relationship exists between the length of wire in the resistance if all other factors remain the same?

What type of relationship exists between the length of a wire and the resistance, if all other factors remain the same? Resistance is directly related to length.

Q. What situation will the lowest resistance occur?

In fact, high temperatures mean more motion of the atoms/electrons inside the wire, so more resistance to the flow of current through it. Therefore, colder temperature means lower resistance. So, the correct option is thick wire and cold temperature.

Q. What happens to the current in a circuit if a 10 resistor is removed and replaced by a 20 resistor?

What happens to the current in a circuit if a 10Ω resistor is removed and replaced by a 20Ω resistor? I = 10Ω → 20Ω For the same voltage, current decreases. 13.

Q. What happens to the resistance when diameter is doubled?

Formula. Hence, if diameter doubles, resistance becomes 1/4 times.

Q. Does resistance increase with length?

Resistance is directly proportional to the length. This means that any change in length of the material will change its value of resistance.

Q. Does temperature affect current density?

It shows that the limiting current density increases with increasing temperature.

Q. Does current depends on area of cross section?

The amount of current does depend on the cross section of a wire, that is, the for a given conductor, the resistance is doubled as the cross-sectional area is halved. The EMF provided by the voltage allows for current to flow.

Q. Is current density always positive?

I know that current density always points in the direction of flow of positive charge.

Q. Can you have a negative current density?

Current is calculated as the scalar product of the current vector and the surface normal. If they are in opposite directions, current density is negative.

Q. What problem is caused by high current density?

High current density puts significant demands on the oxygen transport mechanism, and partial air starvation may occur, resulting in low-performing cells and may accelerate end-of-life due to insufficient power production (see Section 6.4. 1).

Q. What is the relation between electric field and current density?

For an amazingly wide range of materials, an empirical rule called Ohm’s law gives the following relation between current density and applied electric field: J = σ E . In other words, the current density is directly proportional to the electric field.

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