In Figure P28.67, suppose the switch has been closed for a length of time sufficiently long for the capacitor to become fully charged. (E = 8.50 V, r = 10 kn, and r2 = 16 kn.) =10.0 µF 8 3.00 k2 Figure P28.67 (a) Find the steady-state current in each resistor. I = 1.32 Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. µA I2 = 4.32 Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. HA I3-kA = 0 µA (b) Find the charge Q on the capacitor. 8.83 Your response differs from the correct answer by more than 10%. Double check your calculations. µC (c) The switch is opened at t = 0. Write an equation for the current IR, in R2 as a function of time. O (327 µA)e-t/(0.190 s) O (275 µA)et/(0.190 s) (275 µA)e-t/(0.190 s) O (327 µA)et/(0.190 s) (d) Find the time that it takes for the charge on the capacitor to fall to one-fifth its initial value. ms

The figure gives the electric potential V(x) along a copper wire carrying uniform current, from a point of higher potential V, = 8.00 µV at x = 0 to a point of zero potential at x, = 2.60 m. The wire has a radius of 2.10 mm, and copper has a resistivity of 1.69 x 10-8 0-m. What is the current in the wire? V. x (m) Number i Units (A) A

Under the influence of a constant E field of 700.0 N/C; 4.53* 1016 electrons pass through a 5.00 cm piece of wire in 5.00 seconds. a) What is the potential difference across the wire? b) What is the average current during this time period? c) What is the average power during this time? d) What is the effective resistance of the wire?

A toaster oven is rated at 1900 WW for operation at 120 VV, 60 HzHz. Part A What is the resistance of the oven heater element? Express your answer with the appropriate units.     Part B What is the peak current through it? Express your answer with the appropriate units.     Part C What is the peak power dissipated by the oven? Express your answer with the appropriate units.

none of the preceding DETAILS SHIPPS15 8.2.E.020. Two resistors with values of 29 0 and 45 0, respectively, are connected in parallel and hooked to a 18 V batte (a) What would be the current in the circuit? A (b) What would be the power expended in the circuit? W DETAILS SHIPPS15 8.2.E.018. A 13.0 W LED light bulb is turned on. It has an operating voltage of 120 V. (a) How much current (in A) flows through the bulh?

A 2.00-nF capacitor with an initial charge of 4.98 ?C is discharged through a 1.31-kΩ resistor. (a) Calculate the magnitude of the current in the resistor 9.00 ?s after the resistor is connected across the terminals of the capacitor. mA(b) What charge remains on the capacitor after 8.00 ?s? ?C(c) What is the maximum current in the resistor? A

In the circuit shown in Figure OQ28.12, each battery is delivering energy to the circuit by electrical transmis­sion. All the resistors have equal resistance. (i) Rank the electric potentials at points a, b. c, d, and e from highest to lowest, noting any cases of equality in the ranking. (ii) Rank the magnitudes of the currents at the same points from greatest to least, noting any cases of equality.