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ECE · Q286

Measurement And Instrumentation

Engineering and GATE · ECE · question 286

Q286

Consider two metallic wires W1 and W2. They are made up of same material and each has circular cross-section. The diameter of W2 is twice that of W1 and the length of W2 is four times that of W1. Which one of the following statement is TRUE?

A.
Resistance of W1 is half that of W2
B.
Resistance of W1 is equal to that of W2
Answer
C.
Resistance of W1 is twice that of W2
D.
Resistance of W1 is eight times that of W2

Answer: Option B

Solution

Answer: Option B
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