Power in AC circuits Power in AC (alternating current) circuits is a key concept that relates to the flow of electrical energy. In AC circuits, the voltage and current alternate periodically, resulting in a sinusoidal waveform. The instantaneous power in an AC circuit can be calculated using the following formula: Instantaneous power (P) = Voltage…
LCR Series circuit An LCR series circuit is an electrical circuit that consists of three components connected in series: an inductor (L), a capacitor (C), and a resistor (R). Here are some important aspects of an LCR series circuit: Understanding these aspects of an LCR series circuit is important for analyzing its behavior, calculating parameters…
Mutual Inductance Mutual inductance is a phenomenon that occurs when two or more coils of wire are placed close to each other. It describes the ability of one coil to induce an electromotive force (emf) in another coil through the changing magnetic field produced by the current flowing in the first coil. The mutual inductance,…
Lenz Law Lenz’s Law is a fundamental principle in electromagnetism that describes the direction of an induced current in a conductor when it is exposed to a changing magnetic field. It states that the induced current in a conductor will flow in a direction that opposes the change in magnetic flux that caused it. When…
Electromagnetic induction and Alternation of currents Electromagnetic Induction and Alternating Currents are important topics in physics. Here’s a concise overview of these subjects: Electromagnetic Induction: Alternating Currents: This brief overview covers the key concepts and ideas related to Electromagnetic Induction and Alternating Currents. The AIIMS Physics syllabus for the advanced course includes the topics of…
Factors affecting them The factors that can affect the syllabus of the Advanced Course AIIMS Physics (or any other syllabus) include: It’s important for syllabi to be dynamic and adaptable, taking into account the evolving needs of the field, the students, and the society. Regular reviews and updates help ensure that the syllabus remains relevant…
Electromagnetic Electromagnetic refers to the interaction between electric and magnetic fields. It encompasses the study of electromagnetic waves, which include visible light, radio waves, microwaves, infrared radiation, ultraviolet radiation, X-rays, and gamma rays. Electromagnetic phenomena are described by Maxwell’s equations, which are a set of mathematical equations that describe the behavior of electric and magnetic…
Ferromagnetic devices Ferromagnetic devices are electronic or electromechanical devices that utilize the properties of ferromagnetic materials for various applications. These devices rely on the ability of ferromagnetic materials to exhibit a strong magnetic response when subjected to an external magnetic field. Here are some common examples of ferromagnetic devices: These are just a few examples…
Cyclotron A cyclotron is a type of particle accelerator used to accelerate charged particles, such as protons or ions, to high speeds. It consists of two D-shaped hollow metal electrodes called “dees” placed in a strong magnetic field. The dees are connected to an alternating voltage source, which creates an electric field that accelerates the…
Ampere’s Law Ampere’s Law is a fundamental principle in electromagnetism that relates the magnetic field to the electric current flowing through a closed loop. It was formulated by the French physicist André-Marie Ampère. Ampere’s Law states that the line integral of the magnetic field, denoted as B, around a closed path, known as an Amperian…
