For a toroidal solenoid with N turns and radius R carrying current I, what is th

Practice Questions

Q1
For a toroidal solenoid with N turns and radius R carrying current I, what is the magnetic field inside the toroid?
  1. μ₀NI/2πR
  2. μ₀NI/R
  3. μ₀NI/4πR
  4. μ₀NI/2R

Questions & Step-by-Step Solutions

For a toroidal solenoid with N turns and radius R carrying current I, what is the magnetic field inside the toroid?
  • Step 1: Understand what a toroidal solenoid is. It is a coil of wire shaped like a donut (torus) that carries an electric current.
  • Step 2: Identify the variables involved: N is the number of turns of the wire, R is the radius of the toroid, and I is the current flowing through the wire.
  • Step 3: Recall that the magnetic field (B) inside a toroid can be calculated using a specific formula.
  • Step 4: The formula for the magnetic field inside the toroid is B = μ₀NI/2πR, where μ₀ is the permeability of free space (a constant).
  • Step 5: Plug in the values of N, I, and R into the formula to find the magnetic field B.
  • Magnetic Field in Toroidal Solenoid – The magnetic field inside a toroidal solenoid is determined by the number of turns, the current flowing through it, and the radius of the toroid.
  • Ampere's Law – The derivation of the magnetic field in a toroid can be approached using Ampere's Law, which relates the magnetic field to the current and the geometry of the solenoid.
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