What is the effect of increasing the radius of a circular loop carrying current on the magnetic field at its center?
Correct Answer: Magnetic field decreases.
- Step 1: Understand that a circular loop can carry an electric current.
- Step 2: Know that when current flows through the loop, it creates a magnetic field.
- Step 3: Identify that the magnetic field strength at the center of the loop depends on the radius of the loop.
- Step 4: Learn that the relationship between the magnetic field strength and the radius is inversely proportional.
- Step 5: Realize that 'inversely proportional' means that as one value increases, the other value decreases.
- Step 6: Conclude that if you increase the radius of the loop, the magnetic field strength at the center will decrease.
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