For an LC circuit, when the charge on the capacitor is A. one-half of the maximum charge.
B. the energy stored in the capacitor is one-half of the total energy.
C. twice the total energy.
D. equal to the total energy.
E. one-eighth of the total energy.
F. one-quarter of the total energy.

what was the answer?

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27

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