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Diffstat (limited to 'electronics/notes/3')
| -rwxr-xr-x | electronics/notes/3 | 15 |
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diff --git a/electronics/notes/3 b/electronics/notes/3 new file mode 100755 index 0000000..7152b8f --- /dev/null +++ b/electronics/notes/3 @@ -0,0 +1,15 @@ +((1/r)+(1/r)+(1/r))^-1 +that is the total resistance of the circuit if it is in parralel +we did this cool practical with a box to see where resistors are +when you have resistors in series the supply voltage is shared un evenly across the resistors +the sum of the voltages across the resistor will add up to the voltage from the power suply +if the resistors are of the same resistance the voltage will be an even split +greater voltage will go across the larger resistor +each component has the has an equal proportion of the total voltage compared to the proportion that the resistor is to the total voltage + +(r1 / rt) = the proportion in restance + +voltage across a componet = (r1 / rt) x VoltageTotal + +kirchoff's first law, is that the current in all parralel branches adds up to the total current +his second law is that the sum of the energy in point equals the sum of potential differences around any loop of a circuit |