What is the flux density in a magnetic field of cross-sectional area 20cm^2 having a flux of 3mWb?

Question

Answer

Flux Density Calculation

To calculate the flux density in a magnetic field, we can use the formula:

Flux density (B) = Flux (Φ) / Area (A)

Given Values:
Flux (Φ) = 3mWb
Area (A) = 20cm² = 0.002m²

Calculation:
Using the formula above, we can calculate the flux density as:

B = Φ / A
B = 3mWb / 0.002m²
B = 1500 Wb/m² or 1.5 T (Tesla)

Therefore, the flux density in the magnetic field of cross-sectional area 20cm² having a flux of 3mWb is 1.5 Tesla.

Explanation:
Flux density refers to the amount of magnetic flux per unit area of a magnetic field. In this case, we have been given the flux and area of the magnetic field, and we can use the formula to calculate the flux density. The unit of flux is Weber (Wb), and the unit of area is square meters (m²). After calculating the flux density, we get the unit of Tesla (T), which is the SI unit of magnetic field strength. Therefore, the flux density in the magnetic field of cross-sectional area 20cm² having a flux of 3mWb is 1.5 Tesla.

Answer

Determine the total flux emerging from a magnetic pole face of cross sectional area 30cm if the density is 0.9T

Answer

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