KCET Electromagnetic Induction and Alternating Currents Topics 2025

KCET Electromagnetic Induction and Alternating Currents Topics 2025: Karnataka Common Entrance Test, commonly known as KCET, is an entrance exam for a bachelor of technology/engineering/pharmacy. The difficulty level of the KCET exam 2025 is that of the JEE Main exam. Aspirants preparing for the KCET 2025 exam must know that physics is an integral part of the KCET syllabus, and electromagnetic induction and alteration are important chapters in physics. The KCET Electromagnetic Induction and Alternating currents have almost 15 questions in the KCET Question Papers. Electromagnetic Induction & AC comprise topics like Lenz Law, Laws of Electromagnetic Induction, Motional EMF, Eddy Currents, etc. So, it becomes important to check the complete details of the KCET Electromagnetic Induction & Alternating Currents of the KCET 2025 Syllabus .

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KCET Electromagnetic Inductions & Alternating Current Overview 2025

Aspirants preparing the KCET Physics syllabus 2025 must check the overview of Electromagnetic Induction & Alternating Currents to get an insight into the topic. Check the overview below:

Check Also: KCET 2025 Sample Papers

KCET Physics Weightage 2025

Check the weightage of the KCET Physics syllabus 2025 based on the previous year's trends below:

KCET 2025 Electromagnetic Induction and Alternating Current Important Topics

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 2025 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.

Best Books for KCET Electromagnetic Induction and Alternating Currents

Aspirants who are preparing for the KCET 2025 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 2025 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.

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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 2025 exam. If you are looking for admission into the top private engineering colleges in India 2025 , 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!