Which describes the experiments of becquerel and the curies? becquerel showed that uranium requires x-rays to form radiation, and the curies coined the term “radioactivity.” becquerel coined the term “radioactivity,” and the curies showed that uranium requires x-rays to form radiation. becquerel discovered other radioactive elements, and the curies showed that uranium gave off radioactivity. becquerel showed that uranium gave off radioactivity, and the curies discovered other radioactive elements.

Henri Becquerel was a French physicist who in 1896 discovered a new property of matter (which was later called radioactivity). This was accidentally observed when Becquerel found out that uranium salt was spontaneously emitting some kind of rays that went through different substances and were able to veil even a photographic film.

Then the marriage of Marie and Pierre Curie caried out more experiments to study, in a quantitative way, the radiation emitted by the salts Becquerel studied cualitatively, and other salts that contained uranium. During this process they found other radioactive substances, such as: thorium, polonium and radium.

For that reason, the three of them were awarded the Nobel Prize in Physics in 1903 for their discovery of radioactivity.

most voltage drop calculators want the distance between the source and destination. then internally, they double it so both the source and return wires are calculated. but you need to know which distance the calculator uses so you're not half of what you should be or double what you should be.

most circuit breakers will not take a #6 directly, so the electrician will have to splice on a smaller pigtail. you also have to upsize the grounding wire when you upsized the ungrounded (hot) wire (see note in 250.122). this will preclude using most cable assemblies, as a cable with #6 copper will most likely only have a #10 grounding conductor. you need a #6 grounding conductor if the circuit is 20a. a #8 cable is no better, as it will have a #10 grounding conductor too. but most 20a breakers will take a #8 directly.

in your related post, you didn't say what type of load this is. if it is a light or heater, voltage drop won't be a big issue. if this is a motor, the current needs are huge at startup and the voltage drop can pose a problem. if this is a motor, knowing if the motor is under much load during startup will answer the voltage drop effect (a saw is easier to start than a compressor).