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Equivalent Resistance & Networks questions with solutions
Practice Current electricity for JEE Main, JEE Advanced, NEET, and Classes 11–12. Attempt each question, then open it for the full solution.
Showing 1–10 of 35 questions
- MCQmediumCurrent electricity
Five identical resistors each of resistance 1Ω are initially arranged as shown in the figure by clear lines. If two similar resistances are added as shown by the dashed lines, then change in resistance in final and initial arrangement is
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JEE MainsNEET
Open question & full solution → - MCQmediumCurrent electricity
To measure the temperature coefficient of resistivity α of a semiconductor, an electrical arrangement shown in the figure is prepared. The arm BC is made up of the semiconductor. The experiment is being conducted at 25°C and resistance of the semiconductor arm is 3 mΩ. Arm BC is cooled at a constant rate of 2°C/s. If the galvanometer G shows no deflection after 10s, then α is:
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JEE Mains 2024 01 Feb Evening Shift
Open question & full solution → - MCQmediumCurrent electricity
A wire of uniform resistance λ Ω/m is bent into a circle of radius r and another piece of wire with length 2r is connected between points A and B (AOB) as shown in figure. The equivalent resistance between points A and B is _____Ω.
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JEE Mains 202623 January Morning Shift
Open question & full solution → - NumericeasyCurrent electricity
A wire of resistance 20 Ω is divided into 10 equal parts. A combination of two parts are connected in parallel and so on. Now resulting pairs of parallel combination are connected in series. The equivalent resistance of final combination is _______ Ω.
JEE Mains 2024 05 Apr Evening Shift
Open question & full solution → - MCQmediumCurrent electricity
A wire of total resistance R is bent into a triangular pyramid as shown in the original figure, with all six segments of equal length. The equivalent resistance between vertices A and B is R/n. Find n.
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JEE Mains 2025 7 April Morning Shift
Open question & full solution → - MCQmediumCurrent electricity
Find the equivalent resistance across AB.
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JEE MainsNEET
Open question & full solution → - MCQmediumCurrent electricity
A regular n-sided polygon is made from a uniform wire of total resistance R. The equivalent resistance between two adjacent vertices is:
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JEE MainsJEE Advanced
Open question & full solution → - NumericmediumCurrent electricity
The equivalent resistance between the points A and B in the following circuit is x/5 Ω. The value of x is ________.
JEE Mains 202628 January Morning Shift
Open question & full solution → - MCQmediumCurrent electricity
In the network resistors each of value R shown in the fig., calculate the equivalent resistance between the junctions A and C :
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JEE MainsNEET
Open question & full solution → - MCQdifficultCurrent electricity
An infinite network of resistances has been made as shown in the Figure. Each resistance is R. Find the equivalent resistance between A and B.
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Current Electricity Objective Conversion
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