Most of the electricity carrying wires along the roads do not have a plastic covering like the wires used at homes. But why is there no substantial loss of energy?A) Air is not affected by gravity.B) Air is a bad conductor of electricity. C) Electricity flows very fast near highways. D) Current rating is high near highways. Fill in the blanks:
Answers
Answer:
Most of the electricity carrying wires near highways do not have a plastic covering like the wires used at homes because air is a bad conductor of electricity.
Answer:
Magnetism, at its root, arises from two sources:
Electric current.
Spin magnetic moments of elementary particles.
The magnetic properties of materials are mainly due to the magnetic moments of their atoms' orbiting electrons. The magnetic moments of the nuclei of atoms are typically thousands of times smaller than the electrons' magnetic moments, so they are negligible in the context of the magnetization of materials. Nuclear magnetic moments are nevertheless very important in other contexts, particularly in nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI).