Question

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
using a thicker wire
using a thinner wire

Answer 1

Answer:

using long and thicker wire wire will increase resistance coz R IS directly proportional TO Area and Length

Answer 2

Changes cause an increase in the resistance of a wire are using a longer wire and using a thinner wire

• Resistance of a wire refers to the opposition offered by the wire to the flow of electric current. It is determined by the material the wire is made of and its physical dimensions, such as its length, width, and temperature.
• As the length of a wire increases, the resistance increases due to the longer path that the electrons must take through the wire. Similarly, as the cross-sectional area of the wire decreases, such as with a thinner wire, the resistance increases as the electrons have a harder time flowing through the wire.
• An increase in temperature also causes an increase in resistance, as the thermal energy causes the electrons to collide more often and slow down, making it more difficult for the current to flow through the wire.

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