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U=8V
W=400J
Szukane:
q=?
Wzory:
U=W/q
U*q=W /:U
q=W/U
q=400J/8V
q=50C
W = 400J
q=?
W= U*I*t ----> I= W/U*t
I= 400J/8V*1s
I= 400J/8 = 50A
q= I*t
q= 50A* 1s = 50C
8V=400J/Q
Q=400J/8V
Q=50C
50 coulombów