Write an equation for the magnetic field vector B generated by the current at an arbitrary point in terms of I, the length element dl, and the vector for the distance R from dl to the point.

The pressure proportional to the area a- inversely b- directly c- increase d-decrease

Frequency of electromagnetic waves that a radio station is assigned is called

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.