The law of Biot-Savart shows that the magnetic field due to an infinitesimally small current element drops of with the square of the distance from the from the current element (1/r^2). Is it possible to put together a complete circuit whose magnetic field exhibits the same type of decrease? Why or why not?

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.

Infrared rays have a shorter wavelength than question 11 options: x-rays. ultraviolet rays. radio waves. gamma rays.