JEE Main 2019 — Current Electricity Question with Solution
From: JEE Main 2019 (Online) 10th January Morning Slot
Question
A 2 W carbon resistor is color coded with green, black, red and brown respectively. The maximum current which can be passed through this resistor is -
Choose an option
Show full solutionCorrect option: B
Correct answer
B20 mA
Step-by-step explanation
P = i2R.
for imax, R must be minimum
from color coding R = 50 102
imax = 20mA
for imax, R must be minimum
from color coding R = 50 102
imax = 20mA
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This is a previous-year question from JEE Main 2019, 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.