Where do we consider the Universal Gravitational Constant?
A. Anywhere in the universe
B. Only in our solar system
C. In space, outside of a planets gravity
D. Only on earth

An observer that stands still as the electron moves by him, will observe

Why there is no inductive reactance in dc circuits

If you wanted to move an electron from the positive to the negative terminal of the battery, how much work w would you need to do on the electron? enter your answer numerically in joules.