contestada

Which changes would cause an increase in the resistance of a wire? Check all that apply.
increasing its temperature
decreasing its temperature
using a longer wire
using a shorter wire
m using a thicker wire
using a thinner wire

Respuesta :

Answer:

Increasing its temperature.

Longer

and thinner

Explanation:

e2021

onyebuchinnaji

The resistance of a wire increases by increasing its temperature, using a longer wire and using a thinner wire.

Resistivity of a wire

The resistivity of wire describes the opposition to the flow of current in the wire.

[tex]R = \frac{\rho L}{A} \\\\\rho = \frac{RA}{L} \ (ohm-meter)[/tex]

where;

  • R is the resistance (ohms)
  • ρ is resistivity of the wire (ohm-meter)
  • L is length of the wire (m)
  • A is area of the wire (m²)

From the formula above, the resistance of a wire increases with

  • increase in the length of the wire
  • decrease in thickness (radius) of the wire
  • increase in temperature

Learn more about resistance of a wire here: https://brainly.com/question/469388

Otras preguntas