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3 years ago

Which of the following would reduce the resistance of a metal wire?

Physics

2 answers:

Dmitry [639]3 years ago

8 0

Answer:

increasing its thickness

Explanation:

there are four major factors that affect the resistance of a metal wire, they are;

1. the length of the wire: the longer the length of a wire the higher the resistance

recall R=ρL/A

the above equation shows a direct relation between resistance and length

2. the temperature of the wire: the higher the temperature of a wire when heated up, the higher the resistance of the wire

3. the thickness or width of the wire: the higher the thickness the lower the resistance.

from the equation in 1 above, there is an inverse relationship between resistance and area(diameter inclusive) of a wire

4. the material of the wire: different wires have different values of resistivity(ρ). steel shows higher levels of resistivity than copper

therefore, increasing thickness reduces resistance

Lady_Fox [76]3 years ago

3 0

All of the above can affect the resistance of a metal

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Suppose an electron is trapped within a small region and the uncertainty in its position is 24.0 x 10-15 m. What is the minimum

Alina [70]

Answer:

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