Exam 31: Electromagnetic Oscillations and Alternating Current

An LC circuit has a capacitance of 30 $\mu$ F and an inductance of 15 mH. At time t = 0 the charge on the capacitor is 10 $\mu$ C and the current is 20 mA. The maximum current is:

(Multiple Choice)

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Question 81

Consider the mechanical system consisting of two springs and a block, as shown. Which one of the five electrical circuits (I, II, III, IV, V) is the analog of the mechanical system?

(Multiple Choice)

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Question 82

A 45-mH inductor is connected to an ac source of emf with a frequency of 400 Hz and a maximum emf of 20 V. The maximum current is:

(Multiple Choice)

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Question 83

An ac generator produces 10 V (rms) at 400 rad/s. It is connected to a series RL circuit (R = 17.3 $\Omega$ , L = 0.025 H). The rms current is:

(Multiple Choice)

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Question 84

Showing 81 - 84 of 84

Exam 31: Electromagnetic Oscillations and Alternating Current

An LC circuit has a capacitance of 30 μ\muμ F and an inductance of 15 mH. At time t = 0 the charge on the capacitor is 10 μ\muμ C and the current is 20 mA. The maximum current is:

Consider the mechanical system consisting of two springs and a block, as shown. Which one of the five electrical circuits (I, II, III, IV, V) is the analog of the mechanical system?

A 45-mH inductor is connected to an ac source of emf with a frequency of 400 Hz and a maximum emf of 20 V. The maximum current is:

An ac generator produces 10 V (rms) at 400 rad/s. It is connected to a series RL circuit (R = 17.3 Ω\OmegaΩ , L = 0.025 H). The rms current is:

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An LC circuit has a capacitance of 30 $\mu$ F and an inductance of 15 mH. At time t = 0 the charge on the capacitor is 10 $\mu$ C and the current is 20 mA. The maximum current is:

An ac generator produces 10 V (rms) at 400 rad/s. It is connected to a series RL circuit (R = 17.3 $\Omega$ , L = 0.025 H). The rms current is: