The current in the wire is 40 μA. What electrical charge passes through the cross section in 20 minutes?
| June 15, 2021 | education
To determine the value of the charge passed through the wire taken, we apply the formula: q = I * t.
Variables: I – current in the wire (I = 40 μA = 40 * 10-6 A); t – elapsed time (t = 20 min = 1200 s).
Let’s make a calculation: q = I * t = 40 * 10-6 * 1200 = 0.048 C = 48 mC = 48000 μC.
Answer: A charge of 0.048 C (48 mC; 48000 μC) passed through the cross section of the wire taken in 20 minutes.
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