25.X1 The gap between electrodes in a spark plug is 0.0060 cm. to produce an electric spark in a gasoline-air mixture, an electric field of 3.0 x 106 V/m must be achieved. When starting the car, what minimum voltage must be supplied by the ignition circuit?
E = V / x
V = E x
V = = [3 x 106 V/m][0.006 cm][ m / 100 cm ]
V = = 180 V
(As always), be careful with the units and with the zeroes!
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