Basic Concepts
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Right Hand Grip/Thumb Rule, Corkscrew Rule & End/Clock Rule
Right Hand Thumb Gripping Rule, Corkscrew Rule, Clock Rule or End Rule For Current & Magnetic Field Direction A Danish physicist Hans Christian Orsted in 1820 discovered the relation between…
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Coulomb’s Laws of Magnetic Force – Formula & Solved Example
Coulomb’s Law of Magnetic Force Charles-Augustin de Coulomb was the first French physicist and military engineer who introduced the Laws of Magnetic Force in 1785 known as Coulomb’s Inverse Square…
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Fleming’s Left Hand Rule and Fleming’s Right Hand Rule
Fleming’s Left and Right Hand Rules – What is the Difference? John Ambrose Fleming introduced these useful rules in the late 19th century which are applicable in magnetism and electromagnetism.…
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Lenz’s Law of Electromagnetic Induction
What is Lenz’s Law of Electromagnetic Induction What is Lenz’s Law? According to the Lenz’s law (which was introduced by a Russian of Baltic German physicist Heinrich Friedrich Emil Lenz…
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What is Faraday’s Law? Laws of Electromagnetic Induction
Faraday’s Law of Electromagnetic Induction Electromagnetism The interaction between magnetic field and electric current is termed electromagnetism. Current carrying conductors produce a magnetic field when current passes through it. The…
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What is Coulomb’s Law? Laws of Electrostatics With Example
Coulomb’s Laws of Electrostatics Charles-Augustin de Coulomb discovered the Laws of Electrostatics in 1785 known as Coulomb’s Law. Until 1784, no one knew about the unit of the electric charge,…
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Active and Passive Frequency Filters – Formulas & Equations
Frequency Filters – Active and Passive Filters Equations and Formulas Frequency Filters: Passive Filters The type of frequency selecting circuits that are made of only passive components such as resistor,…
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Time Constant τ “Tau” Formulas for RC, RL & RLC Circuits
Time Constant τ “Tau” Equations for RC, RL and RLC Circuits Time constant also known as tau represented by the symbol of “τ” is a constant parameter of any capacitive…
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Operational Amplifier (OP-AMP) – Formulas and Equations
Operational Amplifier (OP-AMP) Formulas Operational Amplifiers: Inverting Amplifier: The following terms are used in the formulas and equations for Operational Amplifies. Rf = Feedback resistor Rin = Input Resistor Vin = Input…
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Bipolar Junction Transistor (BJT) – Formulas and Equations
Formula & Equations for Bipolar Junction Transistor “BJT “ Bipolar Junction Transistor: Current Gains in BJT: There are two types of current gain in BJT i.e. α and β. Where…
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