electronics and electrical Q?

Question

How do you do the formula for series and parallel circuts?
Please explain

current,volts

Answer 1

What formula are you working with?
Current and voltage?
Resistors? Capacitors?

In a parallel circuit, all components have one lead attached to one side of the circuit (which is often one side of a power source) and the other lead attached to the other side of the circuit (often the other side of a power source).

In a series circuit the components are all connected end to end and only the first and last component are connected to the remainder of the circuit (often a power source)

See http://en.wikipedia.org/wiki/Series_and_parallel_circuits

I'm guessing that at this point you have only resistors to work with. If you have capacitance or inductance things get a bit more complex (pun intended) and time enters the picture.

In a parallel circuit the voltage is the same across each component (and I am going to assume the components are resistors). Current through each resistor is then determined by the voltage divided by the resistance.

In a series circuit the current is the same through all components and is equal to the supply voltage divided byb the sum of all of the resistors. The voltage drop across each resistor is the current times the resistance of that resistor.