JEE Main 2023PhysicsUnits and DimensionsEasyMCQ

JEE Main 2023 — Units and Dimensions Question with Solution

JEE Main 2023 (30 Jan Shift 1)

Question

Electric field in a certain region is given by E→=Ax2i^+By3j^. The SI unit of A and B are :

Choose an option

Show full solutionCorrect option: B
Correct answer
BN m2 C-1; N m3 C-1

Step-by-step explanation

E→=Ax2i^+By3j^

Here, the units of  Ax2 and By3 is equal to unit of electric field.

The unit of electric field is N C-1.

So, the SI unit of A is  Ax2=N C-1⇒A=N m2 C-1

And the SI unit of B is By3=N C-1⇒B=N m3 C-1

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About this question

This is a previous-year question from JEE Main 2023, covering the Units and Dimensions 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.