Question

The magnetic field produced by a current carrying circular loop depends upon --------- *

potential difference
resistance
electric current
radius of loop​

Answer 1

Strength of magnetic field is directly proportional to current. Strength of magnetic field is inversely proportional to radius of circular wire. The deflection of needle of magnetic compass placed at the centre of circular wire of smaller radius is more than that placed at centre of circular wire of larger radius....!!

Answer 2

The magnetic field produced by a current carrying circular loop depends upon radius of loop​.

Explanation:

The size of the magnetic field created by a current-carrying circular loop is determined by the following factors:

• The current flowing through the circular loop is proportionate in all directions.  
• The diameter of a circular loop is inversely proportional to its radius.
• The number of turns on the wire in the circular loop is directly proportional to the number of turns on the wire.

Potential difference:

The work or energy released in the transmission of a unit quantity of electricity from one point to another is represented by the difference in potential between two points.

Resistance:

• In an electrical circuit, resistance is a measure of the resistance to current flow. The Greek letter omega represents resistance, which is measured in ohms.
• To some extent, all materials resist current flow.

Electric current:

• The passage of an electric charge between two places is known as an electric current. Consider how energy is carried by water in a river.
• The electric charge in electrons causes heat to build up in resistors in light bulbs and electric fires. Magnetic fields are also created in motors, inductors, and generators.

Radius of loop:

• At $rOms-1$ the radius of a circular loop in a perpendicular uniform magnetic field increases at a constant rate. If the loop's radius is r at any point in time, the emf induced in the loop at that point will be.