The centre of earth is equator and if equator is the centre of earth and as we know the gravity is maximum at centre of the earth then why the gravity is less there?
(Evidently, the question is posted out of some misconception or confusion)
Centre of earth means the centre INSIDE THE EARTH, and there the value of g is zero.
Let us suppose we have a loop of wire with some definite resistance in a magnetic field. Let the magnetic field be varying. This varying magnetic field will st up an EMF in the wire. My questions are as follows:
1). Energy is dissipated across the wire resistance. Where does this energy come from?
2). The current generated will also generate a varying magnetic field. Will this magnetic field generate another EMF in the loop? Will this go indefinitely?