Suppose a circuit contains an electromotive force (a battery) that produces a voltage of E(t) volts (V), a capacitor with a capacitance of C farads (F), and a resistor with a resistance of Rohms (). is the charge (in coulombs), so in this case Q The voltage drop across the capacitor is where C' Kirchhoff's Law gives Q RI+ 2 = E(t). dQ dt we have the differential equation " Since I = dQ 1 R + Q = E(t). dt Suppose the resistance R is 200, the capacitance C is 0.1F, a battery gives a constant voltage E of 30V, and the initial charge is (0) = 0 coulombs. Find the charge Q(t) and the current I(t) at time t. Q(t) = I(t) =

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Suppose a circuit contains an electromotive force (a battery) that produces a voltage of E(t) volts
(V), a capacitor with a capacitance of C' farads (F), and a resistor with a resistance of R ohms (N).
is the charge (in coulombs), so in this case
The voltage drop across the capacitor is where
Q
C'
Kirchhoff's Law gives
Q
RI+ =
E(t).
с
Since I =
dQ
R +
dt
dQ
dt
1
Q
we have the differential equation
=
E(t).
Suppose the resistance R is 200, the capacitance C is 0.1F, a battery gives a constant voltage E of
30V, and the initial charge is Q(0) = 0 coulombs.
Find the charge Q(t) and the current I(t) at time t.
Q(t) =
I(t) =
Transcribed Image Text:Suppose a circuit contains an electromotive force (a battery) that produces a voltage of E(t) volts (V), a capacitor with a capacitance of C' farads (F), and a resistor with a resistance of R ohms (N). is the charge (in coulombs), so in this case The voltage drop across the capacitor is where Q C' Kirchhoff's Law gives Q RI+ = E(t). с Since I = dQ R + dt dQ dt 1 Q we have the differential equation = E(t). Suppose the resistance R is 200, the capacitance C is 0.1F, a battery gives a constant voltage E of 30V, and the initial charge is Q(0) = 0 coulombs. Find the charge Q(t) and the current I(t) at time t. Q(t) = I(t) =
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