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Current Electricity — NEET & JEE Physics MCQs

30 questions written by hand against the NCERT chapter. Every wrong option is explained, not just the right one.

30questions
10/14/6easy / medium / hard
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Sample questions from this chapter

How is instantaneous electric current through a cross-section defined?
  1. The limiting rate dQ/dt ✓
  2. Charge multiplied by time
  3. Potential difference per unit charge
  4. Energy transported per unit volume
Answer: A. Instantaneous current is the limiting net charge crossing a section per unit time, I=dQ/dt.
Why not B: Current is a rate and therefore uses division by time.
Why not C: Energy per charge defines potential difference, not current.
Why not D: Current measures net charge flow, not energy density.
A steady current transports 12.0 C through a cross-section in 3.00 s. What is the current?
  1. 36.0 A
  2. 0.250 A
  3. 4.00 A ✓
  4. 9.00 A
Answer: C. I=Q/t=12.0/3.00=4.00 A.
Why not A: This multiplies charge by time rather than dividing.
Why not B: This takes time divided by charge.
Why not D: This subtracts the numerical time from charge.
What is the equivalent resistance of 4.00 Ω and 6.00 Ω connected in parallel?
  1. 2.40 Ω ✓
  2. 10.0 Ω
  3. 5.00 Ω
  4. 0.417 Ω
Answer: A. R_eq=R₁R₂/(R₁+R₂)=24.0/10.0=2.40 Ω.
Why not B: This is their series resistance.
Why not C: The arithmetic mean cannot be a parallel equivalent because it exceeds the smaller branch.
Why not D: This is 1/4.00+1/6.00, which equals reciprocal resistance and still requires inversion.

These are 3 of the 30 questions in the test. Take the full chapter test →

Read the chapter first

Every NCERT question in this chapter is solved, free: NCERT solutions — Current Electricity →

Other NEET Physics chapters

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All 28 chapters →

Questions

How many NEET and JEE questions are there on Current Electricity?

This chapter test has 30 questions — 10 easy, 14 medium and 6 hard — all written against the NCERT Class 12 chapter.

Is this NEET and JEE Physics chapter test free?

Yes. Every chapter test is free with no login, and you get your all-India rank on every one. Nothing on the site is on sale right now.

Do the questions explain the wrong options?

Yes — every distractor carries its own explanation naming the specific misconception that makes a student pick it. That is the part most question banks skip, and it is the part that changes your next attempt.