The mag. field (B) at the centre of a circular coil of...

Name: Problem 1870, Chapter 13: JEE Physics
Uploaded: 2021-10-02T09:18:16-08:00
Duration: 1 min
Channel: Narayan Hari
Description: The mag. field (B) at the centre of a circular coil of radius "a", through which a current I flows is (a) B ∝c a (b) B ∝(1 / I) (c) B ∝I (d) B ∝I^2

The mag. field (B) at the centre of a circular coil of radius "a", through which a current I flows is
(a) $\mathrm{B} \propto \mathrm{c} \mathrm{a}$
(b) $\mathrm{B} \propto(1 / \mathrm{I})$
(c) $\mathrm{B} \propto \mathrm{I}$
(d) $B \propto I^{2}$

Narayan Hari and 98 other subject Physics 102 Electricity and Magnetism educators are ready to help you.

Ask a new question

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Biot-Savart Law

This fundamental law is used to calculate the magnetic field produced by a current element. It is particularly effective in determining the field generated by symmetric current distributions, such as circular loops, by integrating contributions from each infinitesimal current segment.

Magnetic Field Due to a Circular Loop

This concept explains that the magnetic field at the centre of a circular current loop is directly proportional to the current and inversely proportional to the radius of the loop. It encapsulates the relationship that as current increases, the magnetic field strength increases linearly, and as the radius increases, the magnetic field decreases.

Proportionality Relationships

This concept involves understanding how physical quantities depend on one another in a linear or inverse manner. In the context of a current loop, it shows that the magnetic field is proportional to the current (B ? I), emphasizing the direct influence of the current on the field strength.

Please give Ace some feedback