A solenoid has a length of 1 m and a cross-sectional area of 0.01 m². If the mag
Practice Questions
Q1
A solenoid has a length of 1 m and a cross-sectional area of 0.01 m². If the magnetic field inside the solenoid is 0.2 T, what is the magnetic flux through one turn of the solenoid?
0.002 Wb
0.01 Wb
0.02 Wb
0.1 Wb
Questions & Step-by-Step Solutions
A solenoid has a length of 1 m and a cross-sectional area of 0.01 m². If the magnetic field inside the solenoid is 0.2 T, what is the magnetic flux through one turn of the solenoid?
Step 1: Identify the formula for magnetic flux, which is Φ = B * A.
Step 2: Determine the values needed for the formula. Here, B (magnetic field) is 0.2 T and A (cross-sectional area) is 0.01 m².
Step 3: Substitute the values into the formula: Φ = 0.2 T * 0.01 m².
Step 4: Calculate the result: 0.2 * 0.01 = 0.002.
Step 5: State the unit of magnetic flux, which is Weber (Wb).
Step 6: Conclude that the magnetic flux through one turn of the solenoid is 0.002 Wb.
Magnetic Flux – Magnetic flux (Φ) is the product of the magnetic field (B) and the area (A) through which the field lines pass, measured in webers (Wb).
Solenoid Properties – A solenoid is a coil of wire that generates a magnetic field when an electric current passes through it, characterized by its length, cross-sectional area, and the strength of the magnetic field.
