Question

How do you verify that resistance of a conductor of uniform cross-section area is
proportional to the length of the conductor at constant temperature.

Answer 1

Hint: In this solution, we can verify the required statement by using a simple experiment with the
help of wire, key, ammeter and battery.
Complete step-by-step answer:
Resistance: In an electrical circuit, resistance is a function of opposition to current flow.
Resistance is expressed in ohms, symbolized by the omega (Greek) letter. Conductors: Materials
providing very little resistance where electrons can easily pass.
Conductor: A conductor is an entity or type of material in physics and electrical engineering that
allows the flow of charge (electrical current) in one or more directions. Metal materials are
common conductors of electrical appliances. Electrical conductors allow electrons to flow inside
the conduction band between the atoms of that material with drift speed. Metals, metal alloy,
electrolyte or other non-metals such as graphite and conductive polymer can be the electrical
conductors.

A conductor's resistance means the impediment produced in electrons flow or current flow.
Naturally, the longer the driver's range, the greater the resistance provided to keep the driver's
area stable and at the same temperature. To check this, take a wire of length $l$ of some area and
find its resistance ${\rm{R}}$ at some temperature and at the same temperature takes a $2l$ length
of the same wire again, the resistance will come as$2{\rm{R}}$.
Hence, $R \propto l$ at constant temperature.
Note: To verify this statement, observe the current flow or electron flow, note ammeter reading, and
perceive the battery percentage is required.