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2 cards from this section. Quick, good the night before a test.
What is the shape of the magnetic field produced by a circular coil?
Think about how the field lines would look when you draw them.
Name one factor that increases the strength of the magnetic field in a coil.
More loops will make the field stronger.
What is the magnetic field strength at the center of a circular coil influenced by?
Think about what we discussed regarding each aspect.
The strength of the magnetic field decreases with increasing radius. True or False?
Consider the concentration of field lines.
A circular coil has 20 turns, a radius of 0.1 m, and carries a current of 4 A. Calculate the magnetic field strength at the center. Assume μ₀ = 4π x 10^-7 T m/A.
Follow through the formula and do the math step by step!
If a coil's radius is doubled while keeping the number of turns and current constant, how does the magnetic field strength at the center change? Explain the reasoning.
What happens when you increase the distance from the source?
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