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RC Circuit: Charging We begin the problem with an open switch and an uncharged capacitor. At time t = 0, the switch is closed. Begin the problem by re-drawing the RC circuit at t = 0. 1. Determine 14(t = 0), the magnitude of the current flowing through the resistor R4 just after the switch is closed at time t = 0. 14(t = 0) = A 2. Determine l2, max, the maximum current that flows through resistor R2. A positive value for the current is defined to be in the direction of the arrow shown. 12, max A %3D 3. Determine Qmax, the maximum amount of charge on the capacitor after the switch has been closed for a very long time, t → o. Qmax =

RC Circuit: Charging We begin the problem with an open switch and an uncharged capacitor. At time t = 0, the switch is closed. Begin the problem by re-drawing the RC circuit at t = 0. 1. Determine 14(t = 0), the magnitude of the current flowing through the resistor R4 just after the switch is closed at time t = 0. 14(t = 0) = A 2. Determine l2, max, the maximum current that flows through resistor R2. A positive value for the current is defined to be in the direction of the arrow shown. 12, max A %3D 3. Determine Qmax, the maximum amount of charge on the capacitor after the switch has been closed for a very long time, t → o. Qmax =

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C = 46 microF, R1 = 41 ohms, R2 = 25 ohms, R3 = 90 ohms, R4 = 45 ohms, t open = 620 microseconds

R1 ww R2 ww 12 + R3 Vbat C R4 ww
Transcribed Image Text:R1 ww R2 ww 12 + R3 Vbat C R4 ww
RC Circuit: Charging We begin the problem with an open switch and an uncharged capacitor. At time t problem by re-drawing the RC circuit at t = 0. :0, the switch is closed. Begin the 1. Determine 14(t = 0), the magnitude of the current flowing through the resistor R4 just after the switch is closed at time t = 0. 14(t = 0) = A 2. Determine /2, max the maximum current that flows through resistor R2. A positive value for the current is defined to be in the direction of the arrow shown. A 12, max 3. Determine Qmax, the maximum amount of charge on the capacitor after the switch has been closed for a very long time, t → o. Qmax
Transcribed Image Text:RC Circuit: Charging We begin the problem with an open switch and an uncharged capacitor. At time t problem by re-drawing the RC circuit at t = 0. :0, the switch is closed. Begin the 1. Determine 14(t = 0), the magnitude of the current flowing through the resistor R4 just after the switch is closed at time t = 0. 14(t = 0) = A 2. Determine /2, max the maximum current that flows through resistor R2. A positive value for the current is defined to be in the direction of the arrow shown. A 12, max 3. Determine Qmax, the maximum amount of charge on the capacitor after the switch has been closed for a very long time, t → o. Qmax
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