A 1500-W electric beater is plugged into the outlet of a 120-V circuit that has a 20-A circuit breaker. You plug an electric hair dryer into the same outlet. The hair dryer has power settings of 600 W, 900 W, 1200 W, and 1500 W. You start with the hair dryer on the 600-W setting and increase the power setting until the circuit breaker trips. What power setting caused the breaker to trip?
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- Consider a series RC circuit as in Figure P18.35 for which R = 1.00 M, C = 5.00 F, and = 30.0 V. Find (a) the time constant of the circuit and (b) the maximum charge on the capacitor after the switch is thrown closed. (c) Find the current in the resistor 10.0 s after the switch is closed. Figure P18.35 Problem 35 and 38.arrow_forwardA series RC circuit with C = 48 mF and R = 50 2 is driven by a 24 V source. With the capacitor initially uncharged, an open switch in the circuit is closed to complete the circuit. a) What is the voltage across the capacitor immediately after the switch is closed? b) What is the voltage across the resistor immediately after the switch is closed? c) What is the current in the resistor immediately after the switch is closed? d) What is the voltage across the capacitor after the switch has been closed for 1 s? e) What is the voltage across the resistor after the switch has been closed for 1 s? f What is the current in the resistor after the switch has been closed for 1 s?arrow_forwardA series RC circuit with C = 48 mF and R = 50 Ω is driven by a 24 V source. With thecapacitor initially uncharged, an open switch in the circuit is closed to complete the circuit. a) What is the voltage across the capacitor immediately after the switch is closed?b) What is the voltage across the resistor immediately after the switch is closed?c) What is the current in the resistor immediately after the switch is closed?d) What is the voltage across the capacitor after the switch has been closed for 1 s?e) What is the voltage across the resistor after the switch has been closed for 1 s?f) What is the current in the resistor after the switch has been closed for 1 s?arrow_forward
- In the circuit diagram R1 = 5R and R2 = 15R, where R = 24 Ω. The power dissipated in resistor 2 is P = 3.7 W. A.What is the voltage across the battery in volts? b. How much power, Ps, is the source supplying, in watts?arrow_forwardThis problem involves analyzing an RC circuit. See the circuit diagram below. Switch closes at t = 0 s. А. When the switch closes at t = 0, the capacitor will begin to charge. What is AVc a very long time after the switch has closed? After a very long time, what is the maximum charge on the capacitor, Qmax in terms of a combination of problem variables Ɛ, C or R? %3D Apply Kirchhoff's loop law starting clockwise from the lower left corner. Write down the loop equation for this circuit. How is the current through the resistor related to the instantaneous capacitor charge? Is I = + dQ/dt or I = – dQ/dt? Explain. | В. The Kirchhoff loop equation from part (A) should be a differential equation in terms of dQ/dt. Using the differential equation technique “separation of variables" show that charge as a function of time is given by Q(t) = Qmax(1 – e-t/t). С. Using the result of part (B) determine and expression for the current as a function of time 1(t). Sketch Q (t) and I(t) from t = 0 to t…arrow_forwardA cook plugs a 400 W crockpot and a 1000 w kettle into a 240 V power supply, all operating on directc When we compare the two, we find that Select one: a. I Crockpot > I Kettle and R Crockpot I kettle and Rcrockpot =R kettle. C. I crockpot R kettle. d. I Crockpot = I Kettle and R Crockpot = R Kettle. %3D Previous page Finish attempt Shot by Hisense H12arrow_forward
- A cook plugs a 400 W crockpot and a 1000 W kettle into a 240 V power supply, all operating on directc When we compare the two, we find that Select one: a. I crockpot R く kettle. b. I Crockpot = I Kettle and R Crockpot = R Kettle. c. I Crockpot > I Kettle and R Crockpot I kettle and Rcrockpot = R kettle.arrow_forwardA 10 Ω resistor and a 20 Ω resistor are connected in parallel with a power supply. If the power dissipated by the 10 Ω resistor is 100 W, the power dissipated by 20 Ω resistor is Blank 1 Watts. what is the wattsarrow_forwardb. A capacitor in a RC circuit is charged for a long time as shown in the Figure below, where the battery voltage V=6V. The switch s is flipped from a to b and the capacitor discharges through the R = 4 MQ resistor. 4 seconds after the switch is flipped to discharge the capacitor, the voltage across the capacitor is 3 V. What are (a) The time constant of this circuit (b) The capacitance of the capacitor (c) The current in the circuit and the charge on the capacitor just before the switch is flipped from a to b. (d) The current in the circuit immediately after the switch is flipped from a to barrow_forward
- One heater uses 310 W of power when connected by itself to a battery. Another heater uses 210 W of power when connected by itself to the same battery. How much total power do the heaters use when they are both connected in series across the battery?arrow_forwardAn 1800 WW toaster, a 1300 W electric frying pan, and a 90 W lamp are plugged into the same electrical outlet in a 20 A, 120 V circuit. (Note: When plugged into the same outlet, the three devices are in parallel with each other across the 120 V outlet.) a. What current is drawn by the toaster? b. What current is drawn by the electric frying pan? c. What current is drawn by the lamp? d. Will this combination blow the circuit breaker?arrow_forwardAn A.c has a peak voltage of 42.5V fed to a 100 ohm resistor. What is the average power dissipated in the resistor ?arrow_forward
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