# Physics

posted by .

(a) In the LC circuit shown in the figure, the current is in the direction shown and the charges on the capacitor have the signs shown. At this time,

a) the current is increasing and the charge on the positive plate is increasing.

b) the current is increasing and the charge on the positive plate is decreasing.

c) the current is decreasing and the charge on the positive plate is increasing.

d) the current is decreasing and the charge on the positive plate is decreasing.

e) the current and the charge on the positive plate are constant in time.

f) none of the above

For the following questions, assume that the inductance is 0.05 H, the capacitance is 4 [mathjaxinline]\mu[/mathjaxinline]F, and the maximum magnitude of the current in the circuit is 90 milliAmps.

(b) How many times per second will the magnitude of the current have this maximum value?

(c) The energy stored in the capacitor oscillates up and down as a function of time. What is the magnitude of the difference (in Joules) between the largest and smallest amounts of energy ever stored in the capacitor?

(d) What is the time averaged power (in Watts) flowing into or out of the self inductor over 3 full cycles? Define power into the inductor as positive.

## Similar Questions

1. ### physics

The circuit shown in the figure encloses an area of 25 cm2. The magnetic field increases steadily from 0 T to 0.50 T in 0.2 ms. What is the current in the resistor during this time?
2. ### physics urgent!

The magnetic field in the region shown below is increasing by 5 T/s. The circuit shown (with R=25 , C=55 µF, dimensions 1 m by 2 m) is inserted into the region as shown. The capacitor is initially uncharged. 1. What is the current …
3. ### physics

The magnetic field in the region shown below is increasing by 5 T/s. The circuit shown (with R=25 , C=55 µF, dimensions 1 m by 2 m) is inserted into the region as shown. The capacitor is initially uncharged. 1. How long will it take …
4. ### physics

A 9 V battery is connected in series with a 100 Ω resistor and 12µF capacitor. The capacitor is initially uncharged. What is the capacitive time constant of the circuit?
5. ### bashyam

For the circuit shown in the figure, letε=14 V. Initially the switch is open and the capacitor is uncharged. When the switch is closed, there is an initial instantaneous current of 1.00 mA in the resistor. Two seconds later the …
6. ### physics

A long, straight wire has a 12.1 A current flowing in the positive x-direction, as shown in the figure. Close to the wire is a square loop of copper wire that carries a 2.23 A current in the direction shown. The near side of the loop …
7. ### PHYSICS

Consider two single turn coils labeled 1 and 2 that are positioned close to each other. The switch S has been open for a long time. If the switch is now closed and the current through coil 1 is in the direction shown and increasing, …
8. ### Physics Help pls

Consider two single turn coils labeled 1 and 2 that are positioned close to each other. The switch S has been open for a long time. If the switch is now closed and the current through coil 1 is in the direction shown and increasing, …
9. ### Physics pls help

Consider two single turn coils labeled 1 and 2 that are positioned close to each other. The switch S has been open for a long time. If the switch is now closed and the current through coil 1 is in the direction shown and increasing, …
10. ### physics

The lightbulb in the circuit shown in the figure has a resistance of 14 Ω and consumes 4.2 W of power; the rod is 1.18 m long and moves to the left with a constant speed of 2.9 m/s . The strength of the magnetic field is 2.2 T …

More Similar Questions