If a solenoid has n turns per unit length and carries a current I, what is the m

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Question: If a solenoid has n turns per unit length and carries a current I, what is the magnetic field inside the solenoid?

Options:

Correct Answer: μ₀nI

Solution:

The magnetic field inside a solenoid is given by B = μ₀nI.

If a solenoid has n turns per unit length and carries a current I, what is the magnetic field inside the solenoid?

If a solenoid has n turns per unit length and carries a current I, what is the magnetic field inside the solenoid?

Step 1: Understand what a solenoid is. A solenoid is a coil of wire that creates a magnetic field when an electric current passes through it.
Step 2: Identify the variables in the question. 'n' is the number of turns of wire per unit length, and 'I' is the current flowing through the wire.
Step 3: Know the constant μ₀. This is the permeability of free space, a constant that helps us calculate the magnetic field.
Step 4: Use the formula for the magnetic field inside a solenoid. The formula is B = μ₀nI.
Step 5: Plug in the values of n and I into the formula to find the magnetic field B.

Magnetic Field in Solenoids – The relationship between the magnetic field, the number of turns per unit length, and the current flowing through the solenoid.