Demonstration of Ohms Law (Series Circuit): 

In the circuit above it demonstrates Ohms Law > V = IR. Ohms law is a formula which in an electrical circuit, is used to calculate voltage and its relationship to current along with resistance.

We can see that there are 2 batteries, a paper clip, a pencil and 2 resistors. In total, our voltage for this equation would be equal to 1200 volts. To find volts you would multiply the amps/current by the resistance. Our equation would now look like this: 1200 = IR. Our “I” of the equation is our current/amps. In this case you can see that we have 5.33 amps (as shown on the ammeter.) To find amps you would divide voltage by resistance/ohms. In the example above, our resistance is shown to be 225Ω in total from the paperclip/pencil and 2 resistors. To find resistance we can simply divide our voltage by current/amps. We can check if our equation is correct by solving the equation. 1200V = 1199.25 } It is not exact but nothing will be exact in electricity so we know that this is proving Ohms law!

Series Circuit: There is only only pathway for current to move through in a series circuit. Everything is connected in series. This means that all parts of the circuit will share the exact same current. If one part of this circuit was to fail, then the whole thing would shut down. An example of this type of circuit and how it works can be found in the explanation above!

Short Circuit:

A short circuit occurs when there is too much electricity flowing. Naturally Protons are attracted to Electrons. This creates a loop type of situation. When there is a load on the circuit, then a short circuit won’t ever occur. If you have no source for the electricity to move through, the situation will escalate and become more dangerous. This can cause the circuit to overheat and potentially cause a fire/explode.

In my example, the wires are connecting on the two ends of the batteries and then being attached to a coin with two other wires. You can see that the electrons have no where to move but through the batteries continuously. This is a disaster waiting to happen. <As there is nowhere for the electricity to go but around and around. As I said, when the electricity has nothing to provide power to or has no load, a short circuit will create itself, and overheat. The batteries are attracting the electrons and protons which keep the circuit going but have nothing to power up. The coin in my example isn’t providing power to anything either (it is just transferring it), causing it too to burn.

Parallel Circuit: A parallel circuit is when there are two or more pathways for current to move through. If one breaks down, then the other is still able to produce electricity and allow the circuit to function. < Just not to it’s original ability/capacity. In my example you can see that there are two different pathways for the electrical current to move through. Both are parallel to each other and consist of two resistors each.

Bonus Question: If getting shocked with a circuit with a higher current is dangerous does that mean that a higher voltage is harmless?

No! Although a circuit with higher current is a lot more hazardous than one with higher voltage, it doesn’t mean that it wouldn’t do any harm. Voltage is the power behind the current. With higher voltage, comes higher current. Anything above 50 volts is considered to be dangerous for the human body. Taking account that it would be high voltage, then it would probably be above 50 volts. This would most definitely make it dangerous. After all, it is still electricity and it is easy to say that it would not be a pleasant experience to come in contact with any part of it. Higher voltage is not harmless.