Electrical power, in watts = (voltage, in volts) x (current, in Amperes)
Why do transformers hum? Transformer noise is caused by a phenomenon which causes a piece of magnetic sheet steel to extend itself when magnetized. When the magnetization is taken away, it goes back to its original condition. This phenomenon is scientifically referred to as magnetostriction.
Answer: D
Explanation:
Cause removing excess waste from the body helps to maintain a steady health
-- The student's distance traveled is 200 meters.
-- The student's displacement is 141 meters Northeast.
