jee_main_2026_21_jan_evening - Current Electricity Topics

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

Sample Questions in this Chapter

QUESTION #28 Potentiometer
The total length of potentiometer wire AB is 50 text cm in the arrangement as shown in figure. If P is the point where the galvanometer shows zero reading then the length AP is ________ cm. {{IMG1}}
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QUESTION #35 Maximum Power Transfer Theorem
A battery with EMF E and internal resistance r is connected across a resistance R. The power consumption in R will be maximum when :
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QUESTION #40 Combination of Resistors
Two known resistance of R\,Omega and 2R\,Omega and one unknown resistance X\,Omega are connected in a circuit as shown in the figure. If the equivalent resistance between points A and B in the circuit is X\,Omega, then the value of X is ________ Omega. {{IMG1}}
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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%)
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