A flashlight bulb rated at 4.0 and 5.0 is operated by a 9.0- battery. To light the bulb at its rated voltage and power, a resistor is connected in series as shown in the figure below.
What value should the resistor have?
Express your answer to two significant figures and include the appropriate units.

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When a resistor with resistance R is connected to a 1.50-V flashlight battery, the resistor consumes 0.0425 W of electrical power. (Throughout, assume that each battery has negligible internal resistance.) Part A What power does the resistor consume if it is connected to a 12.6-V car battery? Assume that R remains constant when the power consumption changes. Express your answer with the appropriate units. P P = nothingnothing SubmitRequest Answer Part B The resistor is connected to a battery and...
ch. 19 #2 A battery with an emf of 12.0 V shows a terminal voltage of 11.5 V when operating in a circuit with two lightbulbs, each rated at 4.0 W (at 12.0 V), which are connected in parallel. Part A What is the battery's internal resistance? Express your answer to two significant figures and include the appropriate units. Part B Eight 9.5-W Christmas tree lights are connected in series to each other and to a 120-V source. What is...
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Calculate the terminal voltage for a battery with an internal resistance of 0.750 Ohm and an emf of 6.50 V when the battery is connected in series with a 78.0-Ohm resistor. Express your answer to three significant figures and include the appropriate units. V_ab = Calculate the terminal voltage for a battery with an internal resistance of 0.750 Ohm and an emf of 6.50 V when the battery is connected in series with an 780-Ohm resistor. Express your answer to...
Question 1 Not yet answered Marked out of 1.00 p Flag question A 110-V hair dryer is rated at 1200 W. What current will it draw when operating from a 110-V electrical outlet? Select one: a. 90 mA | b. 11 A O c.5.0 A d. 1.0 A Question 2 Not yet answered Marked out of 1.00 p Flag question A light bulb is connected to a 110-V source. What is the resistance of this bulb if it is a...
Problem 19.01 Part A Caloulate the Express your answer to three significant figures and include the appropriate units. terminal voltage for a battery with an internal resistance of 0.900 2 and an emf of 9.00 V when the battery is connected in series with a 74.0-02 resistor Vas Value Units Submit Part B voitage for a batery with an internal resistance of 0.900 92 and an omt of 9.00 V when the battery is connected in series with an 740-12...
Calculate the terminal voltage for a battery with an internal resistance of 0.750 Ω and an emf of 7.00 V when the battery is connected in series with a 71.0-Ω resistor. Express your answer to three significant figures and include the appropriate units.
A resistor with RRR = 300 ΩΩ and an inductor are connected in series across an ac source that has voltage amplitude 510 VV . The rate at which electrical energy is dissipated in the resistor is 276 WW . Figure of 0 Part A Part complete What is the impedance ZZ of the circuit? Express your answer with the appropriate units. -- SubmitPrevious AnswersRequest Answer Part B Part complete What is the amplitude of the voltage across the inductor?...
Whats is the battery volatage?
In the circuit shown in (Figure 1) the 33-Ohm resistor dissipates 0.95 What is the battery voltage? Express your answer to two significant figures and include the appropriate units.