Page 11 - paruzzi-magazine-en-23

voltage drops

To know how much voltage is How can you calculate the volt-

left for the "real" consumer, the age across each resistor? You can
light bulb, we can use the theory calculate the current and thus

of voltage divider. When two determine the voltage across

resistors are connected in series, each resistor (Ohm's law), or use
the voltage will be distributed this simple formula:

over these two resistors,

proportional to the value of U = U x (R / R )
the resistor. It is certainly not bulb batt. bulb total

the intention to learn these

formulas, but we show them U bulb = 12V x (13,8 Ω / 14,9 Ω)

to make you aware of what
happens when the electrical U bulb = 11,11 V

couplings are not taken care of

(read extra resistors so voltage The bulb in this example gets 10%
drops). Before you know it, your less voltage than needed. It doesn't

beloved VW will let you down ... seem much difference, but an light
bulb loses a lot of its intensity even

with a small drop in voltage.

Paruzzi Magazine 23 11

CLASSIC CAR PARTS