Answer to Question 1
Answer: All magnetic fields have their origin in the motion of electric charges. About a permanent magnet the moving charges are electron motions, including possibly spin motions, in the atoms that compose the magnetmost commonly iron atoms. About a current-carrying wire, the drifting electrons produce the magnetic field.
Answer to Question 2
Answer: Mainly, remind your friend of the conservation of energy. Although a transformer can step up or step down voltages and currents, in no way can it do the same with energy. Energy can neither be created nor destroyed.
The black-capped chickadee is a permanent resident in biomes with harsh winter conditions.
Vision with macular degeneration is experienced with an inability to focus in the center of the visu
Sterile field instructions
A silver wire with a resistivity of 1.59E-8 Ωm has a radius of 14.1 mm.
A current-carrying wire is placed in a uniform magnetic field, as shown below.
An aluminum wire has a length of 27.0 m and a resistance of 2.90 n at 20.00C. As