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The figure shows a circuit containing an electromotive force, a capacitor with a capa where Q is the charge (in coulombs), so in this case Kirchhoff's Law gives RI + 2 - E(t). But I = dQ/dt (see this example from a previous section), so we have R. = E(t).

The figure shows a circuit containing an electromotive force, a capacitor with a capa where Q is the charge (in coulombs), so in this case Kirchhoff's Law gives RI + 2 - E(t). But I = dQ/dt (see this example from a previous section), so we have R. = E(t).

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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The figure shows a circuit containing an electromotive force, a capacitor with a capacitance of C farads (F), and a resistor with a resistance of R ohms (2). The voltage drop across the capacitor is Q/C, where Q is the charge (in coulombs), so in this case Kirchhoff's Law gives RI + = E(t). But I = dQ/dt (see this example from a previous section), so we have DP R dt = E(t). Suppose the resistance is 2 N, the capacitance is 0.01 F, the electromotive force is E(t) = 70 sin(60t) V, and the initial charge is Q = 0 C. Find the charge Q at time t. Q = - e 10 Find the current I at time t. -50t I = 35e
Transcribed Image Text:The figure shows a circuit containing an electromotive force, a capacitor with a capacitance of C farads (F), and a resistor with a resistance of R ohms (2). The voltage drop across the capacitor is Q/C, where Q is the charge (in coulombs), so in this case Kirchhoff's Law gives RI + = E(t). But I = dQ/dt (see this example from a previous section), so we have DP R dt = E(t). Suppose the resistance is 2 N, the capacitance is 0.01 F, the electromotive force is E(t) = 70 sin(60t) V, and the initial charge is Q = 0 C. Find the charge Q at time t. Q = - e 10 Find the current I at time t. -50t I = 35e
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