Odpowiedź:
P=20W
U=12V
t=2h=7200s
q2=48Ah
I=P/U
I=20W/12V
I=1,66A
q=I*t
q=1,66A*7200s
q=11952C
I2=2*I
I2=2*1,66A
I2=3,33A
t=q/I
t=48Ah/3,33A
t=14,4h=51840s
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Verified answer
Odpowiedź:
P=20W
U=12V
t=2h=7200s
q2=48Ah
I=P/U
I=20W/12V
I=1,66A
q=I*t
q=1,66A*7200s
q=11952C
I2=2*I
I2=2*1,66A
I2=3,33A
t=q/I
t=48Ah/3,33A
t=14,4h=51840s