6.3E: The RLC Circuit (Exercises)
- Page ID
- 103519
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In Exercises 1-5 find the current in the \(RLC\) circuit, assuming that \(E(t)=0\) for \(t>0\).
1. \(R=3\) ohms; \(L=.1\) henrys; \(C=.01\) farads; \(Q_0=0\) coulombs; \(I_0=2\) amperes.
2. \(R=2\) ohms; \(L=.05\) henrys; \(C=.01\) farads’; \(Q_0=2\) coulombs; \(I_0=-2\) amperes.
3. \(R=2\) ohms; \(L=.1\) henrys; \(C=.01\) farads; \(Q_0=2\) coulombs; \(I_0=0\) amperes.
4. \(R=6\) ohms; \(L=.1\) henrys; \(C=.004\) farads’; \(Q_0=3\) coulombs; \(I_0=-10\) amperes.
5. \(R=4\) ohms; \(L=.05\) henrys; \(C=.008\) farads; \(Q_0=-1\) coulombs; \(I_0=2\) amperes.
In Exercises 6-10 find the steady state current in the circuit described by the equation.
6. \({1\over10}Q''+3Q'+100Q=5\cos10t-5\sin10t\)
7. \({1\over20}Q''+2Q'+100Q=10\cos25t-5\sin25t\)
8. \({1\over10}Q''+2Q'+100Q=3\cos50t-6\sin50t\)
9. \({1\over10}Q''+6Q'+250Q=10\cos100t+30\sin100t\)
10. \({1\over20}Q''+4Q'+125Q=15\cos30t-30\sin30t\)


