JEE Main 2021 — Current Electricity Question with Solution
From: JEE Main 2021 (Online) 1st September Evening Shift
Question
Two resistors R1 = (4 0.8) and R2 = (4 0.4) are connected in parallel. The equivalent resistance of their parallel combination will be :
Choose an option
Show full solutionCorrect option: C
Correct answer
C(2 0.3)
Step-by-step explanation
Given,
R1 = (4 0.8)
R2 = (4 0.4)
Equivalent resistance when the resistors are connected in parallel is given by
Now,
Substituting the values in the above equation, we get
The equivalent resistance in parallel combination is .
R1 = (4 0.8)
R2 = (4 0.4)
Equivalent resistance when the resistors are connected in parallel is given by
Now,
Substituting the values in the above equation, we get
The equivalent resistance in parallel combination is .
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Current Electricity chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2021, covering the Current Electricity chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.