Question

If the magnetic field has different magnitudes and directions at various parts of a surface as shown in given figure, then the magnetic flux through the surface is given by

• A. $\sum _{\text{all }}{B}_i\cdot d{A}_i$
• B. $\sum _{\text{all }}{B}_i\times {\left(d{A}_i\right)}^2$
• C. $\sum _{\text{all }}{B}_i\times d{A}_i$
• D. $\sum _{\text{all }}{B}_i\cdot d{A}_i$

Answer 1

Answer: (D)

${\sum }_{\text{all }}{B}_i\cdot d{A}_i$