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JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)

jee_main_2024_31_jan_evening - Current Electricity Topics

Master these core formulas and structures to solve almost any past paper question.

Sample Questions in this Chapter

QUESTION #39 Meter Bridge
The resistance per centimeter of a meter bridge wire is r, with X \, Omega resistance in left gap. Balancing length from left end is at 40 text cm with 25 \, Omega resistance in right gap. Now the wire is replaced by another wire of 2r resistance per centimeter. The new balancing length for same settings will be at
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QUESTION #43 Power Dissipation
By what percentage will the illumination of the lamp decrease if the current drops by 20\%?
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QUESTION #51 Power in DC Circuits
In the following circuit, the battery has an emf of 2 text V and an internal resistance of frac23 \, Omega. The power consumption in the entire circuit is ______ W. {{IMG1}}
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YOUR FIRST PREP STEP STARTS HERE

We Map Every Repeating Question in Competitive Exams.

Say goodbye to generic mock test fatigue. RankBit uses smart analysis to group past exam questions into their foundational Repeating Question Types. Find chapter weightage, track repeating questions, and score higher with targeted practice.

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PATH A — FULL LENGTH PRACTICE

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PATH B — TARGETED PRACTICE

Topic-wise Practice Hub

Practice past-year questions one chapter at a time. Pick an exam → subject → chapter and get every PYQ for that topic — pulled together from all past papers — with the chapter's key formulas alongside.

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