Electric circuit and Magnetic circuit: Similarities and Dissimilarities In this article, we are going to discuss differences and similarities between electric circuit and magnetic circuit. The electric circuit is known as the path traced by the current. The magnetic circuit is known as the path traced by the magnetic flux. Let’s discuss similarities and dissimilarities of Electric circuit and Magnetic circuit.

Similarities:

Similarities between electrical and magnetic circuits are given below.

 Magnetic circuit Electric circuit The close path for the magnetic flux is called magnetic circuit. The close path for the electric current is called electric circuit. The number of magnetic lines of force decide the magnetic flux. Flow of electron decide the current passing through the conductor. Flux (ф) = MMF/Reluctance Current (I) = EMF/Resistance MMF is the driving force in the magnetic circuit. The unit of MMF is ampere-turns (AT). EMF is the driving force in the electric circuit. The unit of EMF is volts (V). Reluctance (S) opposed by the magnetic path to the flux. The unit of reluctance is AT/wb. Resistance (R) oppose the flow of current. The unit of resistance is ohm (Ω). Flux (ф) measured in weber (Wb). Current (I) measured in Ampere (A). MMF measured in Amp Turns (AT). EMF measured in Volts (V).  Permanence = 1/Reluctance = 1/S Conductance = 1/Resistance = 1/R Permeability (μ) Conductivity (σ) Reluctivity Resistivity Flux Density (B) = ф/A (Wb/m2) Current Density (J) = I / A (A/m2) Magnetic Intensity (H) = NI/L (AT/m) Electric Intensity (E) = V/d (V/m) Kirchhoff MMF Law and Flux Law is applicable to the Magnetic Flux. Kirchhoff Current Law (KCL) and Kirchhoff Voltage Law (KVL) is applicable to the electrical circuit.