An LRC circuit is at critical damping with R = 100 ?. Starting from its maximum value, the charge on the capacitor drops to 50% of its value in a time t = 5 ms. What are the values of the inductance L and the capacitance C?

A)

L = 0.36 H, C = 0.144 mF
B)

L = 2.67 H, C = 1. 25 mF
C)

L = 0.03 H, C = 0. 3 mF
D)

L = 1.17 H, C = 8.1 mF
E)

L = 5.12 H, C = 0. 06 mF


A

Physics & Space Science

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If R = 3.0 k?, C = 5.0 mF, ? = 6.0 V, Q = 15 mC, and I = 4.0 mA, what is the potential difference Vb ? Va?



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b.
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c.
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d.
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e.
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