Practice portal › Current Electricity › Combination of Resistors

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.

Asked in JEE Main 15th April 1st Shift 2023 · Series and parallel combinations

• (1) Statement I is true but Statement II is false.
• (2) Both Statement I and Statement II are false.
• (3) Statement I is false but Statement II is true.
• (4) Both Statement I and Statement II are true.

Step-by-step solution

Why the other options are wrong

• (1) Statement I is false: a series sum is larger than the largest resistor; the 'smaller than least' rule is for parallel.
• (3) Statement II is false: resistivity changes with temperature (it rises for metals, falls for semiconductors).
• (4) Both statements are false, so neither can be accepted.

Reading this solution needs no sign-in. You only sign in to practise against the clock and keep your progress.