Ok so in fact in the first situation an emf would be induced too in the opposite direction to the original current. So does this mean if you were to connect an ammeter to the wire in the first situation you would notice a drop in current?
Hello everyone
Ive got myself into a muddle over the forces involved in magnetic fields.
I understand that if a current carrying wire is perpendicular to a magnetic field then it will experience a force according to Flemings Left Hand Rule.
Now if a wire is to move in the same direction...
The problem I am struggling with is this . .
The centre of the Earth-Moon system is 4.7x10^3 km from the centre of the earth. Calculate;
i.the ratio of the mass of the Earth with the mass of the moon.
ii.The acceleration of free fall on the Moon's surface.
Constants
Distance between...