PHYSICAL PROBLEMS

CURRENT IN METALS


PROBLEM
While starting the car inner lights sometimes fade out or a radio stops playing for a moment. Why ?

SOLVING
Accumulator is a source of electricity which produces constant current. Therefor if the impedance is raised, aplied voltage is decreased. Brightness of bulb light depends on aplied voltage. The higher the aplied voltage the brighter the light is.

SOLVING 2
Accumulator is hard current source. With big power consumption after strarting engine (tens of ampers) from accumulator, markedly stoop his applied voltage. This causes light fading.