In an experiment, a wire is held above a compass needle as shown.
An electric current is switched on in the wire and the compass needle is deflected.
Which row explains why this happens and then describes what happens when the current is reversed?
1 )
A
2 )
B
C
4 )
D
تحلیل ویدئویی تست
منتظریم اولین نفر تحلیلش کنه!