rawanammar50 rawanammar50
  • 14-11-2020
  • Physics
contestada

HELP
which two changes to a metal wire both increases resistance? the answer is B but why ?

HELP which two changes to a metal wire both increases resistance the answer is B but why class=

Respuesta :

astonishinglycool
astonishinglycool astonishinglycool
  • 14-11-2020

Answer:

option C

decreasing its thickness and increasing its temperature.

Explanation:

Resistance is directly proportional to length and temperature of the wire and inversely to area.

if you increase the temperature the resistance will increase.(resistance is directly proportional to temperature)

if you decrease its thickness (area) then the resistance will increase ( resistance is inversely proportional to area)

hope it helps:)

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