An AC Circuit Has a Coil, with Resistance 10 Ω and and Inductance

question 4

Multiple Choice

An a.c. circuit has a coil, with resistance 10 Ω and inductance 100 mH, in parallel with a capacitor and has a resonant frequency of 120 Hz. The Q-factor of the circuit is:

• A) 0.01
• B) 0.08
• C) 0.13
• D) 7.5

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