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conventional current, electrons in the wire are attracted to the + battery terminal, so they'll go out from negative all the way to the positive side.
resistors- electrons slow down when interact with atoms on a wire, which reduces the current, current is indirectly related to resistance, Restistance is ohms
relationships:
voltage and current directly related, voltage goes up current goes up and voltage goes down current goes down.
current indirectly related to resistor, resistor goes up current goes down and resister goes down current goes up
ohm's law-
V= IR (voltage (V)= resistance (ohms) x current (A))
E= Pt (Energy (J)= power x time (s))
P= IV (power (watts)= current (A) x voltage (volts))
wire- ------
restsitor ----www----
light bulb ------O-----
battery ------l I l I-------
switch -----/ -------
series circuits-
single path for electrons to flow
voltage drop across each device depends directly on resistance.
Total voltage divides among the individual electric devices in the circuit
Voltage (V=IxR) specifically Va = I x Ra
electric CURRENT is CONSTANT through each device
series- Rtotal= Ra+Rb+Rc...
Parallel Circuits-
branches out
As number of branches increases, resistance of circuit decreases, which is why if you plug a lot of things into one socket, lights will start to flicker
VOLTAGE remains CONSTANT
Current (I= V/R) specifically Ia= Va/Ra
Parallel- 1/Rt = 1/Ra + 1/Rb +1/Rc.....
Combining resistors-
series- Rtotal= Ra+Rb+Rc...
Parallel- 1/Rt = 1/Ra + 1/Rb +1/Rc.....
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