Which of the following statements is true for electricity?
A. Electricity can only be generated from coal
B. Electricity travels through wires at the speed of light
C. Electricity cannot be stored
D. Electricity always flows from positive to negative
Answer:B
Which of the following statements is true for electricity?
A. Electricity can only be generated from coal B. Electricity travels through wires at the speed of light C. Electricity cannot be stored D. Electricity always flows from positive to negative