Question:
The formula for magnetic field of a certain component is given by
\[
B = \frac{\mu_0 Ni}{2\pi r}
\]
where, \(N\) = total number of turns, \(i\) = current, \(r\) = radius. The component is:
The formula for magnetic field of a certain component is given by
\[
B = \frac{\mu_0 Ni}{2\pi r}
\]
where, \(N\) = total number of turns, \(i\) = current, \(r\) = radius. The component is:
Show Hint
Toroid field depends on \( \frac{1}{r} \), unlike solenoid (constant field).
Updated On: Apr 16, 2026
- ring
- solenoid
- toroid
- None of these
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Concept:
Magnetic field inside a toroid is:
\[
B = \frac{\mu_0 Ni}{2\pi r}
\]
Step 1: Identify formula.
Given expression matches exactly with toroid field formula.
Step 2: Conclusion.
\[ \therefore \text{Component is toroid} \]
Step 1: Identify formula.
Given expression matches exactly with toroid field formula.
Step 2: Conclusion.
\[ \therefore \text{Component is toroid} \]
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