KCET Electromagnetic Induction and Alternating Currents Topics 2026
KCET Electromagnetic Induction and Alternating Currents have topics like Lenz's Law, Faraday's Law, Electromagnetic Induction, Magnetic Flux, and more. Check the complete details related to the KCET electromagnetism and alternating currents topics 2026 here.
A key component of Class 12 Electrodynamics, Electromagnetic Induction and Alternating Currents is one of the KCET Physics syllabus 2026's most conceptually deep and scoring units. The foundation for comprehending the production, transmission, and use of electric power in daily life is laid forth in this subject. It is crucial for candidates to have both theoretical clarity and problem-solving skills because questions from this chapter frequently occur in KCET as both straight formula-based issues and concept-oriented numerical questions.
The topic of Electromagnetic Induction focuses on the phenomenon of induced electromotive force (emf) produced due to a change in magnetic flux. Key concepts such as Faraday’s Laws of Electromagnetic Induction, Lenz’s Law, induced current, self-induction, mutual induction, and eddy currents are central to this section. Students are expected to understand the physical interpretation of magnetic flux, the mathematical formulation of induced emf, and the role of Lenz’s law in conserving energy. Practical applications like electric generators, transformers, and electromagnetic braking are also important from an exam perspective.
The second part, Alternating Currents, introduces students to time-varying currents and voltages, which form the basis of modern electrical power systems. This section covers AC voltage and current, root mean square (RMS) values, phasor diagrams, and the behavior of AC circuits containing resistors, inductors, and capacitors. Special emphasis is given to concepts such as impedance, reactance, power factor, and resonance in LCR circuits, as these topics frequently feature in KCET numerical problems.
Electromagnetic Induction and Alternating Currents unit is quite pertinent for KCET 2026 candidates because of its close connection to practical electrical technologies and its steady weighting in the test. Performance can be greatly improved by having a solid grasp of derivations, graphical interpretations, and formula applications. In addition to improving KCET scores, mastering this chapter provides a solid conceptual foundation for further engineering and applied physics courses.
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KCET Electromagnetic Inductions & Alternating Current Overview 2026
Aspirants preparing the KCET Physics syllabus 2026 must check the overview of Electromagnetic Induction & Alternating Currents to get an insight into the topic. Check the overview below:
KCET Electromagnetic Inductions & Alternating Current Overview 2026 | |
Topic | Electromagnetic Induction and Alternating Currents |
Important Topics |
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Weightage | 12 Questions (approx.) |
KCET Exam Pattern 2026 | Total Number of Questions: 180
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Check Also: KCET Sample Papers
KCET Physics Weightage 2026
Check the weightage of the KCET Physics syllabus 2026 based on the previous year's trends below:
KCET Syllabus 2026 Physics First Year PUC | |
Topic | Expected Weightage |
Motion in a Straight Line | 3-4% |
Mechanical Properties of Solids | 1-2% |
Thermodynamics | 4-5% |
Work, Energy & Power | 3-4% |
Waves | 3-4% |
Systems of Particles and Rotational Motion Gravitation | 1-2% |
Physical World | 0-1% |
Kinetic Theory | 2-3% |
Motion in a Plane | 3-4% |
Mechanical Properties of Fluids | 2-3% |
Laws of Motion | 3-4% |
Units and Measurements | 1-2% |
Oscillations | 3-4% |
Kinetic Theory | 4-5% |
KCET Syllabus 2026 Physics Second Year PUC | |
Topic | Expected Weightage |
Electrostatic Potential and Capacitance | 1-2% |
Wave Optics | 3-4% |
Electromagnetic Waves | 2-3% |
Moving Charges and Magnetism | 1-2% |
Electromagnetic Induction | 3-4% |
Ray Optics and Optical Instruments | 2-3% |
Current Electricity | 4-5% |
Atoms | 1-2% |
Dual Nature of Radiation and Matter | 1-2% |
Alternating Current | 3-4% |
Electric Charges and Fields | 2-3% |
Semiconductor Electronics | 3-4% |
Magnetism and Matter | 3-4% |
Communication Systems | 4-5% |
KCET 2026 Electromagnetic Induction and Alternating Current Important Topics
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The Electromagnetic Induction and Alternating Currents are the combination of two separate chapters that are based on the principles of Alternating Current and Electromagnetic Induction. Aspirants should thoroughly understand the chapter before studying Electromagnetic Induction and Alternating Current for the KCET 2026 exam. Check the important topic for the Electromagnetic Induction and alternating current below:
Magnetic Flux: Magnetic flux is defined as the number of magnetic field lines passing through a given closed surface. It provides the measurement of the total magnetic field that passes through a given surface area.
- The SI unit of magnetic flux is Weber (Wb).
- The fundamental unit is volt-seconds.
- The CGS unit is Maxwell.
Faraday's law of Electromagnetic Induction: Faraday’s law of Electromagnetic Induction has two laws that are defined as:
- First Law: A conductor placed in a varying magnetic field induces an electromotive force. If the conductor circuit is closed, a current is induced, which is called induced current.
- Second Law: The induced emf in a coil is equal to the rate of change of flux linkage.
Lenz's Law: The induced electromotive force with different polarities induces a current whose magnetic field opposes the change in magnetic flux through the loop to ensure that the original flux is maintained through the loop when current flows in it.
Eddy current: Eddy current is defined as the induced current in a conducting coil when a magnetic flux is allowed to flow through it
Self and Mutual Inductance: When there is a change in the current or magnetic flux of the coil, an electromotive force is induced. This phenomenon is termed self-inductance.
Reactance and Impedance: The motion of electrons constitutes the current generation in an electrical circuit and any inertia against this motion of electrons constitutes reactance.
LCR series circuit: An LCR circuit, also known as a resonant circuit, tuned circuit, or an RLC circuit, is an electrical circuit consisting of an inductor (L), capacitor (C) and resistor (R) connected in series or parallel.
Resonance: A phenomenon in which an external force or a vibrating system forces another system around it to vibrate with greater amplitude at a specified frequency of operation.
Power in AC circuits: Power in AC circuits is defined as the amount of energy delivered per unit of time by the circuit. It is used to calculate how much total power is required to run a load. In an AC circuit, the power factor is defined as the ratio of real power (P) and apparent power (S).
Wattless Current: Wattless current, also known as idle current, is a current in an alternating current (AC) circuit that consumes no power on average. It occurs when the phase difference between the voltage and current is π/2, which causes the average power to be zero.
AC generator and transformer: AC generators are also known as alternators which convert mechanical energy into electrical energy in the form of alternating current. Kilo volt-amperes is the unit used for rating the AC generator.
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Best Books for KCET Electromagnetic Induction and Alternating Currents
Aspirants who are preparing for the KCET 2026 exam must check the list of important books that can help them score maximum score in the exam. Check the list of best preparation books for KCET Electromagnetic Induction and Alternating Current below:
- Concepts of Physics by H.C. Verma
- Understanding Physics series by D.C. Pandey
- Fundamentals of Physics by Halliday, Resnick, and Walker
- Problems in General Physics by I.E. Irodov
- Objective Physics" by Dinesh Kumar
Best Preparation Tips for KCET Electromagnetic Induction and Alternating Current
Candidates can check the best preparation tips for the Electromagnetic Induction and Alternating Current chapter for the KCET 2026 exam. The preparation tips will help the students secure maximum marks in the KCET exam:
- Go through the subtopics of the Electromagnetic Induction and Alternating Current chapter and search for the topics that are repeated in previous year’s question papers
- Check the KCET exam pattern and check the weightage of the chapter, marks allotted to the topics, and marking scheme
- Take the mock test of the separate Electromagnetic Induction and Alternating Current after completing the chapter while preparing for the KCET
- Solve the KCET Previous Year Question Papers
- Take the KCET mock test in exam conditions. It will help the aspirants prepare for the exam day
- Analyse the mock test after taking a break, as it will help to rethink and get the topics easily
- Take frequent breaks while preparing to keep yourself healthy and calm, as it will maximise the quality productivity level.
Related Article: KCET Optics Topics 2026
We have provided the complete details of the KCET Electromagnetic Induction and Alternating Current in the article. We hope that it is beneficial to the aspirants who are willing to appear for the KCET 2026 exam. If you are looking for admission into the top private engineering colleges in India 2026 , you can just fill out the Common Application Form on our website. It is a single application form for admission into various universities. stay tuned to CollegeDekho for the latest updates related to the KCET exam. All the best for your bright future!