JEE Main · 2023 · 15 Apr 2023 · Shift 1 · Current Electricity

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Given below are two statements:

Statement I: The equivalent resistance of resistors in a series combination is smaller than least resistance used in the combination.

Statement II: The resistivity of the material is independent of temperature.
In the light of the above statements, choose the correct answer from the options given below :
  1. (A)Statement I is false but Statement II is true
  2. (B)Both Statement I and Statement II are false✓ Correct
  3. (C)Statement I is true but Statement II is false
  4. (D)Both Statement I and Statement II are true

Answer: (B)

Solution

In a series combination the equivalent resistance is , which exceeds every individual resistance, so the first statement is false. The resistivity of a material changes with temperature—rising with temperature for conductors—so the second statement is false as well. Both statements are false.

JEE Main · 2023 · 15 Apr 2023 · Shift 1 · Single correct option

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