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The ratio of the strength of the magnetic field due to current carrying loop if the magnitude of the current through the loop is doubled?
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The ratio of the strength of the magnetic field due to current carryin...
Understanding Magnetic Field Strength in a Current-Carrying Loop
When analyzing the effect of current on the magnetic field produced by a current-carrying loop, it's essential to comprehend the relationship between current and magnetic field strength.
Magnetic Field Due to a Current Loop
- The magnetic field (B) created at the center of a circular loop of wire is directly proportional to the current (I) flowing through it.
- The formula for the magnetic field at the center is given by: B = (μ₀ * I) / (2 * R), where μ₀ is the permeability of free space and R is the radius of the loop.
Effect of Doubling the Current
- When the current flowing through the loop is doubled (2I), the magnetic field strength also changes.
- Substituting this into the equation, we have: B' = (μ₀ * (2I)) / (2 * R).
Resulting Changes in Magnetic Field Strength
- Simplifying the expression, we find: B' = 2 * (μ₀ * I) / (2 * R) = 2B.
- This indicates that if the current is doubled, the magnetic field strength at the center of the loop also doubles.
Conclusion
- Therefore, the ratio of the magnetic field strength after doubling the current to the original magnetic field strength is 2:1.
- In summary, increasing the current leads to a proportional increase in the magnetic field strength, illustrating the direct relationship between current and magnetic field in a current-carrying loop.
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The ratio of the strength of the magnetic field due to current carrying loop if the magnitude of the current through the loop is doubled?
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