If the voltage applied to a wire increases, then its current is not affected.

true
false

False (if we assume the resistance of the wire remains the same) Current = Voltage / Resistance. Hope i helped man:D

When the ball is rising up, it gains kinetic energy. when the ball reaches the very top, it will have all potential energy, until it falls back down and gains it kinetic energy. finally when you catch the ball or it falls back down, it would have gained its potential energy back.