Exam 31: Electromagnetic Oscillations and Alternating Current

The impedance of the circuit shown is:

(Multiple Choice)

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Question 81

An RLC series circuit has L = 100 mH and C = 1 $\mu$ F. It is connected to a 1000-Hz source emf is foundto lead the current by 75 $\degree$ . The value of R is:

(Multiple Choice)

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Question 82

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 charge on the capacitor is:

(Multiple Choice)

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Question 83

The units of the power factor are:

(Multiple Choice)

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Question 84

Showing 81 - 84 of 84

Exam 31: Electromagnetic Oscillations and Alternating Current

The impedance of the circuit shown is:

An RLC series circuit has L = 100 mH and C = 1 μ\muμ F. It is connected to a 1000-Hz source emf is foundto lead the current by 75 °\degree° . The value of R is:

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 charge on the capacitor is:

The units of the power factor are:

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An RLC series circuit has L = 100 mH and C = 1 $\mu$ F. It is connected to a 1000-Hz source emf is foundto lead the current by 75 $\degree$ . The value of R is:

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 charge on the capacitor is: