I want to make sure that I understand this circuit. Please tell me if anything I'm saying here is wrong.
There is a battery, which is drawn as 3 electrochemical cells in series. The voltage of the battery is the sum of the voltages produced by each cell. The internal resistance of the battery is the sum of the internal resistances of each cell. The current will be the same as that produced by the weakest cell.
By convention, current is said to flow from positive to negative. So this is clockwise for this circuit.
There is a voltage drop from A to C. In fact, there is a voltage drop from A to B, and also from B to C. The voltage drop from A to B plus the voltage drop from B to C equals the voltage drop from A to C. In fact, the resistances add that way as well. The current at point A is the same as the current at point C.
The wire that point A is located on has a resistance so low that for most purposes we can say that it has no resistance. Therefore, the voltage at all points on that wire is the same. Same with the bottom wire.
We can say that the bottom wire is "ground". That refers to zero voltage. The top wire is some positive value above ground.
I could equally say that the top wire is ground, and that the bottom part of the circuit has a negative voltage with respect to it.
It is my choice which wire I refer to as ground. In fact, I could refer to point B as ground if it is convenient for me.
Is it correct to say that the voltage is converted to heat? Or is it something like, the energy expended by the current flowing through the resistors is equal to the integral of power with respect to time. The power is a function of voltage, current and resistance. That energy is given off as heat.
Is it correct to say that the voltage is converted to heat? Or is it something like, the energy expended by the current flowing through the resistors is equal to the integral of power with respect to time. The power is a function of voltage, current and resistance. That energy is given off as heat.
Is it correct to say that the voltage is converted to heat? Or is it something like, the energy expended by the current flowing through the resistors is equal to the integral of power with respect to time. The power is a function of voltage, current and resistance. That energy is given off as heat.
By convention, current is said to flow from positive to negative. So this is clockwise for this circuit.
This is also not entirely true:
By convention, current is said to flow from positive to negative. So this is clockwise for this circuit.
Inside the battery, current flows from the negative terminal to the positive terminal.
Is it correct to say that the voltage is converted to heat?