D. 5.0A because this is right and will lead to the right answer okay you got this girl letssssss goooo googoggo Gogol
You get the net force acting on it ... the sum of the strengths and directions
of all the individual forces there may be.
As per energy conservation we know that
Energy enter into the bulb = Light energy + Thermal energy
so now we have
energy enter into the bulb = 100 J
Light energy = 5 J
now from above equation we have



Technically you can go forever on and on, but maybe your question was like how many rotations in a certain distance?