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Electrical energy and power, electrical resistivity and conductivity Concepts for JEE

30+ syllabus-aligned questions available

Quick answer

Master Electrical energy and power, electrical resistivity and conductivity by understanding definitions, standard results, and typical JEE question patterns — then practise with syllabus-aligned MCQs on Goodmarks.

Build clear conceptual foundations for Electrical energy and power, electrical resistivity and conductivity before speed practice. This guide covers what JEE expects and how to test yourself with MCQs.

Concept explainer

Electrical energy and power, electrical resistivity and conductivity is a core JEE Main Physics subtopic under Current Electricity. Master the definitions, standard results, and typical MCQ patterns tested in JEE Main and Advanced.

Key points

  • Understand the definition and scope of Electrical energy and power, electrical resistivity and conductivity in the JEE syllabus
  • Memorise key formulas and standard results linked to Electrical energy and power, electrical resistivity and conductivity
  • Practise 20–40 syllabus-aligned MCQs with step-by-step solutions

JEE tips

  • Revise Electrical energy and power, electrical resistivity and conductivity with a one-page formula sheet before attempting mixed tests
  • After each practice set, log mistakes specific to Electrical energy and power, electrical resistivity and conductivity and reattempt after 48 hours

Common trap

Students often rush Electrical energy and power, electrical resistivity and conductivity questions without checking units, sign conventions, or boundary conditions — always verify assumptions before calculating.

Syllabus context

Part of Current Electricity in JEE Main Physics.

Free sample questions

Attempt 8 free MCQs for Electrical energy and power, electrical resistivity and conductivity. Unlock 22+ more with Pro.

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Q1PhysicsUnit 12: Current Electricity
In the circuit shown, the heat produced in 5Ω5 \Omega resistor is 10 calorie/sec. The heat produced/sec in 4Ω4 \Omega resistor will be :
Q2PhysicsUnit 12: Current Electricity
Q Type your question- and of fixed emf, the resistor R1\boldsymbol{R}_{1} has fixed resistance and the resistance of resistor R2\boldsymbol{R}_{2} can be varied (but R2\boldsymbol{R}_{2} is always nonzero). Then the electric power delivered to the resistor of resistance R1R_{1} is independent of the value of resistance R2\boldsymbol{R}_{2} Reason f potential difference across a fixed resistance is unchanged, the power delivered to the resistor remains constant.
Q3PhysicsUnit 12: Current Electricity
The most important safety method used for protecting home appliances from short circuiting or overloading is
Q4PhysicsUnit 12: Current Electricity
The electrical energy in kilowatt hours consumed in operating ten 50 W50 ~ W bulbs for 10 hrs/day in a month of 30 days is
Q5PhysicsUnit 12: Current Electricity
The Joules heating effect for an electric heater in A.CA . C and in D.C. circuit is
Q6PhysicsUnit 12: Current Electricity
The heat developed in a system is proportional to the current through it. Then
Q7PhysicsUnit 12: Current Electricity
A heater coil is cut into two equal parts and only one part is now used in the heater. The heat generated will now be:
Q8PhysicsUnit 12: Current Electricity
P=V2RP=\frac{V^{2}}{R} is applied when

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