In a toroidal solenoid with N turns and carrying current I, what is the magnetic
Practice Questions
Q1
In a toroidal solenoid with N turns and carrying current I, what is the magnetic field inside the toroid?
μ₀NI/2πr
μ₀NI/r
μ₀NI/4πr
μ₀NI/2r
Questions & Step-by-Step Solutions
In a toroidal solenoid with N turns and 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 key variables: N is the number of turns of the wire, I is the current flowing through the wire, and r is the distance from the center of the toroid to the point where you want to find the magnetic field.
Step 3: Recall Ampere's Law, which relates the magnetic field around a closed loop to the current passing through that loop.
Step 4: Apply Ampere's Law to the toroidal solenoid. The formula for the magnetic field (B) inside the toroid is given by B = μ₀NI/2πr.
Step 5: Understand that μ₀ is the permeability of free space, a constant that helps determine the strength of the magnetic field.
