Q1. In the adjacent figure each of the two capacitors mounted in parallel has a value C, the resistor has a value R, and the power supply has value ɛ = 25 V. Upon closing the key S the charging process of the two capacitors starts. The initial value of the electric current was lo = 25 mA, as shown in the table below, then the electric current decreased until it vanished at t = co. The table below shows the values of the electric C R current every two seconds as measured by the ammeter A. t (s) 0 2 4 68 10 12 14 16 18 I (mA) 25 20 16 13 10 8 7 5 4 3 q (mC) 40 55 66 75 89 97 Determine the value R of the resistor in kƆ units. Plot the l-t graph (electric current versus time). Determine the circuit constant time t from the l-t graph. Determine the value C of each capacitor in µF units. Complete the table by evaluating the electric charge q(t) on each e) capacítor at the moments t = 2, 12, 16, c∞.
Q1. In the adjacent figure each of the two capacitors mounted in parallel has a value C, the resistor has a value R, and the power supply has value ɛ = 25 V. Upon closing the key S the charging process of the two capacitors starts. The initial value of the electric current was lo = 25 mA, as shown in the table below, then the electric current decreased until it vanished at t = co. The table below shows the values of the electric C R current every two seconds as measured by the ammeter A. t (s) 0 2 4 68 10 12 14 16 18 I (mA) 25 20 16 13 10 8 7 5 4 3 q (mC) 40 55 66 75 89 97 Determine the value R of the resistor in kƆ units. Plot the l-t graph (electric current versus time). Determine the circuit constant time t from the l-t graph. Determine the value C of each capacitor in µF units. Complete the table by evaluating the electric charge q(t) on each e) capacítor at the moments t = 2, 12, 16, c∞.
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