Question

The magnetic field around a current- carrying wire will be?
A parallel to the wire
B. at right angles and pointing towards the wire
C. ath the right angle and not pointing toward the wire
D. none of these
E. all of these

Answer 1

magnetic field around a current-carrying wire makes rings around the wire. if your right thumb is pointing in the direction of current flow, your right fingers curl. in the direction of the magnetic field created. picture at http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/magcur.html

Answer 2

so its B

Answer 3

no, the field doesn't point at wire, it wraps around the wire, like a bunch of donuts on a string.

Answer 4

its none of these