In electrostatic systems, a potential difference (i. e, a voltage) always corresponds to an electric field. is this also true about circuits? specifically, does the potential difference between the two terminals of the battery correspond to an electric field anywhere? or do circuits allow us to have "voltages without fields? "

the average speed is 24.57 km/hr

in this image, you can see solar radiation going through ocean water.

no image, but probably absorption

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide