Energy comes from the Sun, plants and animals that we eat, to provide us with nutrients we need for energy.
Answer:
a. passing from south end of solenoid to north end and is decreasing in magnitude
Explanation:
by taking into account the Lenz's law
From the Lenz's law we know that if the self-induced emf is due to a decrease in the current, the self-induced current is in a opposite direction. In the other case, when the current increase, the self-induced current is in the same direction that the initial current in the solenoid.
If we assume the second case (the current is increasing) the change in the magnetic flux is negative and the self-induced current contributes to the initial current
I hope this is usefull for you
regards
Answer is 6.84 approx
reason:-
(2.78^2+6.25^2)^1/2=6.84 approx
Is potential energy that results from conservative Coulomb forces and is associated with the configuration of a particular set of point charges within a defined system