Examlex
Match each item with the correct statement below.
-used to change AC voltages
Q5: One can reverse the north and south
Q16: the distance between two successive 'like' points
Q42: The main form of radiation that our
Q63: Three devices that use electromagnetic induction in
Q64: If the Kelvin temperature of an object
Q81: Helium always has two neutrons in its
Q83: AM radio stations have greater range than
Q104: Parallel light rays from a distant object
Q128: A current can be made to flow
Q128: Sound in a vacuum is impossible.