Can you devise a method for accurately nothing changes in the position of the moon at a set time on successive? Something like using a fixed sighting point, a meter stick, protractor etc can be useful . Describe your technique.

the answer to your question is high voltage and high currency

r=rho l/a where a is the area, l is the length and rho is resistivity so the greater the area the lesser the resistance thats why the earth pin is thicker bcos current follow the shortest path, so less resistive .

the second one and the forth one are in the purple because they are opinions and the rest are in the yellow

explanation:

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.