1) A current is passed through a straight wire. The magnetic field established around it has its lines of force
a) Circular and endless
b) Oval in shape and endless
c) Straight
d) All are true
1) A current is passed through a straight wire. The magnetic field established around it has its lines of force
a) Circular and endless
b) Oval in shape and endless
c) Straight
d) All are true