Question

Voltage across a capacitor 10 9 8 7 6 5 4 3 2 1 0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 Charging Discharging Voltage Time 8 The circuit contains an ideal battery, two resistors and a capacitor (C = 200 µF). The switch is closed at time t = 0, in the voltage across the capacitor is recorded as a function of time as shown in the graph. Read the data in the graph carefully and answer the following questions. a) What is the time constant for this circuit when the switch is closed? ?closed = b) What is the time constant for this circuit when the switch is open? ?open = c) What is the resistance of the resistor R1? R1 = d) What is the resistance of the resistor R2? R2 = e) What is the total current produced by the battery at t = 0? I = f) What is the charge of the capacitor at t = 1s? Q = g) (extra) What is the current through resistor R1 at t = 0.2s? I =

          Voltage across a capacitor
10
9
8
7
6
5
4
3
2
1
0
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
Charging
Discharging
Voltage
Time
8 The circuit contains an ideal battery, two resistors and a capacitor (C = 200 µF). The switch is closed at time t = 0, in the voltage across the capacitor is recorded as a function of time as shown in the graph. Read the data in the graph carefully and answer the following questions.
a) What is the time constant for this circuit when the switch is closed? ?closed =
b) What is the time constant for this circuit when the switch is open? ?open =
c) What is the resistance of the resistor R1? R1 =
d) What is the resistance of the resistor R2? R2 =
e) What is the total current produced by the battery at t = 0? I =
f) What is the charge of the capacitor at t = 1s? Q =
g) (extra) What is the current through resistor R1 at t = 0.2s? I =

Voltage across a capacitor
10
9
8
7
6
5
4
3
2
1
0
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
Charging
Discharging
Voltage
Time
8 The circuit contains an ideal battery, two resistors and a capacitor (C = 200 µF). The switch is closed at time t = 0, in the voltage across the capacitor is recorded as a function of time as shown in the graph. Read the data in the graph carefully and answer the following questions.
a) What is the time constant for this circuit when the switch is closed? ?closed =
b) What is the time constant for this circuit when the switch is open? ?open =
c) What is the resistance of the resistor R1? R1 =
d) What is the resistance of the resistor R2? R2 =
e) What is the total current produced by the battery at t = 0? I =
f) What is the charge of the capacitor at t = 1s? Q =
g) (extra) What is the current through resistor R1 at t = 0.2s? I =

Added by Cassandra R.

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