Question

Field at the centre of a circular coil of radius r, through which a current I flows is (A) Directly proportional to r (B) Inversely proportional to I (C) Directly proportional to I (D) Directly proportional to I2

Answer 1

Field at the centre of a circular coil of radius r, through which a current I flows is directly proportional to I

Explanation:

• If the current at the centre of the circular wire is directly proportional to the current flowing through the wire.
• It is inversely proportional to the radius of the wire, if the radius is increased then the field is also decreased.
• The magnetic field is a vector quantity.
• It has both magnitude and direction.
• The Direction is right angle at the plane of the circle.

To know more about the magnetic field,

What are the directions of electric and magnetic field vectors relative ...

https://brainly.in/question/282329

Answer 2

Answer:

electric potential v is given by