2. When any coil is placed in a uniform mag. field torque is acting on it. The graph of τ→θis

Name: Problem 1942, Chapter 13: JEE Physics
Uploaded: 2021-07-06T17:45:25-08:00
Duration: 3 min 5 s
Channel: Vishal Gupta
Description: 2. When any coil is placed in a uniform mag. field torque is acting on it. The graph of τ→θis

step 1 Hi, the given problem given wire is converted into a circular loop. The current carrying wire wi

2. When any coil is placed in a uniform mag. field torque is...

Key Concepts

Sinusoidal Variation of Torque

The torque experienced by a magnetic dipole in a uniform magnetic field varies sinusoidally with the angle between the dipole moment and the magnetic field. This sine dependence, expressed mathematically as ? = mB sin?, indicates that the torque is zero when the dipole is aligned with or against the field and reaches a maximum when the dipole is perpendicular to the field. This sinusoidal behavior is fundamental in analyzing the behavior of coils in magnetic fields.

Magnetic Torque

Magnetic torque is the turning effect experienced by a magnetic dipole when placed in an external magnetic field. This torque tends to rotate the dipole so that it aligns with the field, and its magnitude is given by the product of the magnetic dipole moment, the magnetic field strength, and the sine of the angle between them. This concept is key to understanding the behavior of coils in magnetic fields and forms the basis of devices such as electric motors and galvanometers.

Magnetic Dipole Moment

The magnetic dipole moment is a measure of the strength and orientation of a magnet or current loop's magnetic field. In a current-carrying coil, it is directly related to the current flowing through the coil and the area of the coil, acting as a vector quantity that determines the coil's interaction with an external magnetic field. It is essential for calculating the torque acting on the coil.

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