An Oscillating LC Circuit Has a Resonant Frequency of 1 $\Delta$

question 4

Multiple Choice

An oscillating LC circuit has a resonant frequency of 1.2 × 10⁶ Hz. The diagram shows the system at t = 0 s when there is no charge on the capacitor and the current is in the direction shown. At this time, the energy stored in the inductor is 2.5 × 10^-7 J.
-Which one of the following statements is true for this circuit?

• A)When the current in the inductor is zero, \(\Delta\)I/\(\Delta\)t = 0 A/s.
• B)The circuit will allow dc as well as ac current to flow.
• C)The magnetic field in the inductor is a maximum at t = 0 s.
• D)The charge on the capacitor will be a maximum at t = 4.2 × 10^-7 s.
• E)As the current through the inductor decreases, the induced emf in the coil is directed opposite to the direction of the current.

Identify and explain protodeclaratives and protoimperatives in early communication.

Comprehend the significance of conversational pragmatics and its development in children.

Understand the cognitive processes involved in language acquisition.

Recognize different theoretical perspectives on how children learn language.

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