Multiple choice general knowledge science & technology

How does resistance of a material varies with length

  1. Inversely

  2. Does not vary with length

  3. Directly

  4. As inverse square root
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The resistance of a material is directly proportional to its length. This relationship comes from the formula R = ρL/A where R is resistance, ρ is resistivity, L is length, and A is cross-sectional area. As length increases, resistance increases linearly, assuming constant cross-section and material.

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