Q1PhysicsUnit 14: Electromagnetic Induction and Alternating Currents
Which of the following statement
regarding transformer is incorrect?
Physics · JEE
Important Questions: AC generator and transformer for JEE
20+ syllabus-aligned questions available
Quick answer
The most important AC generator and transformer questions for JEE cover conceptual traps, standard results, and numerical patterns from AC generator and transformer. Goodmarks provides 20+ high-yield MCQs with full solutions.
Focus on what matters most. These important AC generator and transformer questions cover high-weightage concepts from AC generator and transformer — the topics JEE repeats every year.
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
Attempt 8 free MCQs for AC generator and transformer. Unlock 12+ more with Pro.
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?
Want unlimited AC generator and transformer practice?
Pro unlocks the full question bank, topic filters, and attempt history.
Popular questions in AC generator and transformer
- Which of the following statement regarding transformer is incorrect?…
- A power transmission line feeds input power \( t 2300 \mathrm{V} \) to a step-down transformer with its primary windings…
- A step up transformer is used to:…
- Which one of the following statements is true?…
- A step up transformer is used to:…
- A power transmission line feeds input power \( t 2300 \mathrm{V} \) to a step-down transformer with its primary windings…
Frequently asked questions
What makes a AC generator and transformer question "important" for JEE?
Important questions test core concepts that appear frequently across JEE Main and Advanced papers — definitions, standard formulas, and classic problem types.
Which subtopics in Electromagnetic Induction and Alternating Currents are high-weightage?
Key areas include AC generator and transformer. Prioritise these before moving to edge cases.
How many important questions should I revise?
Revise 30–50 important MCQs per unit in the last month before JEE. Focus on questions you got wrong at least once.
Can I practise only important questions on Goodmarks?
Pro users can filter by unit and subtopic to target high-yield areas. Free users can attempt sample questions on this page.
Related topics
How to Prepare: AC generator and transformer
JEE preparation strategy and study plan
Practice: AC generator and transformer
Online Practice
MCQs: AC generator and transformer
MCQs
PYQs: AC generator and transformer
Previous Year Questions
Mock Test: AC generator and transformer
Mock Test
Notes: AC generator and transformer
Notes & Formulas
Mistakes: AC generator and transformer
Common Mistakes
Weightage: AC generator and transformer
Weightage
Revision: AC generator and transformer
Revision
Concepts: AC generator and transformer
Concepts
Tricks: AC generator and transformer
Short Tricks
Easy: AC generator and transformer
Easy MCQs