Author Question: In a LRC circuit, a second capacitor is connected in parallel with the capacitor previously in the ... (Read 72 times)

james · **on:** Jul 29, 2018

In a LRC circuit, a second capacitor is connected in parallel with the capacitor previously in the circuit. What is the effect of this change on the impedance of the circuit?

A)

It increases.
B)

It decreases.
C)

It does not change.
D)

It increases for frequencies below resonance and decreases for frequencies above resonance.
E)

It decreases for frequencies below resonance and increases for frequencies above resonance.

Question 2

When a 60-W lightbulb is operating on a 120-V household line, what current does it draw?

A)

0.5 A
B)

120 J/C
C)

2.0 A
D)

1.414 A
E)

40 J/C