Contents

Electromagnetic Theory
Vector Analysis
Electrostatics
Magnetostatics
Maxwell Equations
Wave Propagation
Transmission Lines
Antennas
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Biot-Savart Law

dH = IdL cross aR / (4*pi*R²), magnetic field from current.

Darshan N
Updated: 19 March 2026
5 min read

Biot Savart Law

Test your understanding of the Biot-Savart Law and its application to magnetic field calculations.

Question 1 of 3

Q1.A finite straight conductor carries current I. Using the Biot-Savart Law, the differential magnetic field intensity dH at a point P due to a differential current element IdL is proportional to which of the following?