Question

potential difference between two points of a wire carrying 4 ampere current is 0.4 volt calculate the resistance between these points​

Answer 1

R  = 10 Ohms

Explanation:

Given:

Potential difference V = 0.4 volts

Current I = 4 A

Find: Resistance R

Solution:

Resistance R can be calculated using the formula:

R = V / I

  = 0.4 / 4

R  = 10 Ω

Resistance of a conductor is the opposition to the flow of charge. It depends on the length of the conductor, its area of cross section and the resistivity of the material. Its unit is Ohms.