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# Extensive lessons in Electricity and Magnetism with Challenging Problem session

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Course type: Online Instructor led Course

Platform: Skype,

Course ID: 9076

Course type: Online Instructor led Course

Platform: Skype,

Students Interested 0 (Seats Left 0)

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This course focuses extensively on electricity and magnetism concepts in problem oriented manner. The whole course has less theory and more problems, challenging problems.

## Topics Covered

ELECTROSTATICS
Electric charges: Conservation of charge, Coulomb’s law-forces between two point charges, forces between multiple charges; superposition principle and continuous charge distribution.
Electric field: Electric field due to a point charge, Electric field lines, Electric dipole, Electric field due to a dipole, Torque on a dipole in a uniform electric field.
Electric flux, Gauss’s law and its applications to find field due to infinitely long uniformly charged straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical shell. Electric potential and its calculation for a point charge, electric dipole and system of charges; Equipotential surfaces, Electrical potential energy of a system of two point charges in an electrostatic field.
Conductors and insulators, Dielectrics and electric polarization, capacitor, combination of capacitors in series and in parallel, capacitance of a parallel plate capacitor with and without dielectric medium between the plates, Energy stored in a capacitor.

CURRRENT ELECTRICITY
Electric current, Drift velocity, Ohm’s law, Electrical resistance, Resistances of different materials, V-I characteristics of Ohmic and nonohmic conductors, Electrical energy and power, Electrical resistivity, Colour code for resistors; Series and parallel combinations of resistors; Temperature dependence of resistance. Electric Cell and its Internal resistance, potential difference and emf of a cell, combination of cells in series and in parallel. Kirchhoff’s laws and their applications. Wheatstone bridge, Metre bridge. Potentiometer – principle and its applications.

MAGNETIC EFFECTS OF CURRENT AND MAGNETISM
Biot – Savart law and its application to current carrying circular loop. Ampere’s law and its applications to infinitely long current carrying straight wire and solenoid. Force on a moving charge in uniform magnetic and electric fields. Cyclotron.
Force on a current-carrying conductor in a uniform magnetic field. Force between two parallel current-carrying conductors-definition of ampere. Torque experienced by a current loop in uniform magnetic field; Moving coil galvanometer, its current sensitivity and conversion to ammeter and voltmeter.
Current loop as a magnetic dipole and its magnetic dipole moment. Bar magnet as an equivalent solenoid, magnetic field lines; Earth’s magnetic field and magnetic elements. Para-, dia- and ferro- magnetic substances.
Magnetic susceptibility and permeability, Hysteresis, Electromagnets and permanent magnets.

ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS
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; Quality factor, power in AC circuits, wattless current. AC generator and transformer.

## Who should attend

any students above 10th standard, aspiring to crack JEE

## Pre-requisites

Basic science background

## What you need to bring

computer and internet connection

## Key Takeaways

1) confidence in handling electricity and magnetism problem in all respect
2) highlighting the multi conceptual problems
3) concept formulation
4) cracking problem

Not decided yet.

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Kushal Chatterjee

Senior Research fellow at IIT Bombay, Junior Research Fellow at IIT kanpur (2008) dept of mathematics and statistics, Research Assistant at IIT kanpur dept of aerospace 2008,Btech in electronics and communication engg, Anna University, Chennai

1) 5+ years of teaching experience to IIT/JEE aspirants and GATE aspirants.

2) Published 3 papers in IEEE journal

3) Member of the IEEE review committee china in 2011

4) Current research topics- Neural Networks, System Identification applications

## Reviews

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## Discussions

Students Interested 0 (Seats Left 0)

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