Which one of the following is the correct statement regarding the resistance? The resistance of a wire is directly proportional to the length of the wire. The resistance of a conductor decreases with temperature. None of the above statements is correct. All of the above statements are correct. O The resistance of a semiconductor increases with temperature.
Which one of the following is the correct statement regarding the resistance? The resistance of a wire is directly proportional to the length of the wire. The resistance of a conductor decreases with temperature. None of the above statements is correct. All of the above statements are correct. O The resistance of a semiconductor increases with temperature.
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Transcribed Image Text:You are given a copper bar of dimensions 3 cm x 5 cm × 8 cm and asked to attach
leads to it in order to make a resistor. If you want to achieve the smallest possible
resistance, you should attach the leads to the opposite faces that measure
5 cm x 8 cm.
3 cm x 8 cm.
3 cm x 5 cm.
Any pair of faces produces the same resistance.
Transcribed Image Text:Which one of the following is the correct statement regarding the resistance?
The resistance of a wire is directly proportional to the length of the wire.
The resistance of a conductor decreases with temperature.
None of the above statements is correct.
All of the above statements are correct.
The resistance of a semiconductor increases with temperature.
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