Q1PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
Which of the following statement
regarding transformer is incorrect?
Physics · JEE
AC generator and transformer Concepts for JEE
20+ syllabus-aligned questions available
Quick answer
Master AC generator and transformer by understanding definitions, standard results, and typical JEE question patterns — then practise with syllabus-aligned MCQs on Goodmarks.
Build clear conceptual foundations for AC generator and transformer before speed practice. This guide covers what JEE expects and how to test yourself with MCQs.
Concept explainer
AC generator and transformer is a core JEE Main Physics subtopic under Electromagnetic Induction and Alternating Currents. Master the definitions, standard results, and typical MCQ patterns tested in JEE Main and Advanced.
Key points
- Understand the definition and scope of AC generator and transformer in the JEE syllabus
- Memorise key formulas and standard results linked to AC generator and transformer
- Practise 20–40 syllabus-aligned MCQs with step-by-step solutions
JEE tips
- Revise AC generator and transformer with a one-page formula sheet before attempting mixed tests
- After each practice set, log mistakes specific to AC generator and transformer and reattempt after 48 hours
Common trap
Students often rush AC generator and transformer questions without checking units, sign conventions, or boundary conditions — always verify assumptions before calculating.
Syllabus context
Part of Electromagnetic Induction and Alternating Currents in JEE Main Physics.
- Electromagnetic induction: Faraday's law, induced emf and current, Lenz's law, eddy currents, self and mutual inductance
- Alternating currents, peak and RMS value of alternating current/voltage
- Reactance and impedance, LCR series circuit, resonance, power in AC circuits, wattless current
- AC generator and transformer
Free sample questions
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Q2PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
The input AC voltage to the transformer
is and output is . Then:
Q3PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
Assertion (A): More the turns more is
the
resistance
Reason(R): Impedance of primary and secondary in a transformer is directly proportional
to number
of turns in the coils.
Q4PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
Which of the following will not increase voltage in a simple generator?
Q5PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
The output power in step-up transformer used in practice is
Q6PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
The device which converts the
mechanical energy in to electric energy is
Q7PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
A step-up transformer of turns ratio 2: 1 has AC voltage applied to primary The frequency of AC output voltage across secondary is :
Q8PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
What do we name the device which
increases the emf?
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Popular questions in AC generator and transformer
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