Specifically this chapter:
http://www.allaboutcircuits.com/vol_1/chpt_3/3.html
So this book so far has helped me untangle some misconceptions but I am still stuck on a few things.
1. Something being common means that its resistance (I believe) in connection with a wire is 'close' enough where they are considered connected. So let's talk about this picture:
and the quote from the book
2.
Aren't multiple paths to ground here going to create a possible scenario of electrons still flowing to the guy?
Finally, a small side question when voltage drop is mentioned in some chapters.
In a series circuit, it is stated that the total voltage drop across all loads must equal the voltage of the source. Let's say I have a DC 9V battery and two wires in series connected to a load. There is a voltage drop of 4V across the load. I fail to see how the above statement is true considering that only one voltage drop of 4V exists and it is certainly not equal to source voltage alone. The positive common wire set (wires after the load) will now read as 5V and the negative common wire set (from the source) will read as 9V.
http://www.allaboutcircuits.com/vol_1/chpt_3/3.html
So this book so far has helped me untangle some misconceptions but I am still stuck on a few things.
1. Something being common means that its resistance (I believe) in connection with a wire is 'close' enough where they are considered connected. So let's talk about this picture:
and the quote from the book
Isn't there a path though from the circuit, through the guy and back to the earth though? What's the difference where the end of the path is if the ground is 0V at the human's leg to ground and the circuit has a higher voltage, won't the electrons have a desire to flow through?Since there is no complete path (circuit) formed through the person's body from the bottom side of the voltage source to the top, there is no way for a current to be established through the person.
2.
Aren't multiple paths to ground here going to create a possible scenario of electrons still flowing to the guy?
Finally, a small side question when voltage drop is mentioned in some chapters.
In a series circuit, it is stated that the total voltage drop across all loads must equal the voltage of the source. Let's say I have a DC 9V battery and two wires in series connected to a load. There is a voltage drop of 4V across the load. I fail to see how the above statement is true considering that only one voltage drop of 4V exists and it is certainly not equal to source voltage alone. The positive common wire set (wires after the load) will now read as 5V and the negative common wire set (from the source) will read as 9V.