If B vectos, is added A vectos under a what condition does the resultont vectos have a
magnitude equal to the A+B?

What are igneous intrusions and extrusions

Explain why electric current cannot exist if a current doesn't have a voltage source.

The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b.b. at twice the distance, the magnitude of the field is 2b.c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.