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In 5 minutes, if the electric quantity passing through the cross-sectional area of a conductor is 60C, the current passing through the conductor is 60C How much is it There are 20 identical lamps connected in series to a 200V circuit. The current at both ends of each lamp is A .4840V B.10V C.200V D.0.1V
No cross-sectional area!
Definition of current: the ratio of the charge quantity Q passing through the cross section of conductor to the time t taken to pass through these charges is called current, and I is used to represent current
Because q = 60C, t = 5 * 60 = 300s
So it should be I = q / T = 60 / 300 = 0.2A
The next one should be B
In a metal conductor, if the charge passing through the cross section is 10C in 10s, the current in the conductor is I=______ A．
According to the definition of current intensity, I = QT = 1010a = 1a, so the current in the conductor is 1a
In 10s, the amount of charge passing through the cross section of a conductor is 6 banks, the work done by the current is 36 joules, the current passing through the conductor is --- A, and the voltage at both ends of the conductor is --- v
Q = it I = q / T = 6 / 10 = 0.6A w = uit u = w / it = 36 / (0.6 * 10) = 6V charge quantity: charge quantity（
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