A battery with an emf of 12.0 V shows a terminalvoltage of 11.6 V when operating in a circuit withtwo lightbulbs, each rated at 4.0 W (at 12.0 V),which are connected in parallel.Part AWhat is the battery's internal resistance?Express your answer to one significant figure and include the appropriate units.HÀ?ValueUnits

Given: The electromotive force, emf (E) = 12.0 V Terminal voltage, when two bulb are connected in…

Answered: A battery with an emf of 12.0 V shows a…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Part A A 1.5 V flashlight battery is connected to a wire with a resistance of 1.00 N. The figure (Figure 1)shows the battery's potential difference as a function of time. What is the total charge lifted by the charge escalator? Express your answer with the appropriate units. Value Units Submit Request Answer Provide Feedback Figure K 1 of 1 AV M 1.5 2 hr
IP Three resistors, R₁ = 30, R2 = 68 2, and R3 = R, are connected in parallel with a 12 V battery. Part A The total current flowing through the battery is 0.88 A. Find the value of resistance R. Express your answer using two significant figures. R= Submit Part B I1, I2, I3 = | ΑΣΦ Submit 3 Request Answer Find the current through each resistor. Enter your answers numerically separated by commas. Express your answers using two significant figures. [ΨΕΙ ΑΣΦ ? Request Answer Ω ? A
Determine the magnitudes and directions of the currents in each resistor shown in the figure. The batteries have emfs of E1 = 8.2 V and E2= 11.8 V and the resistors have values of R1 = 30 Ω , R2 = 36 Ω , and R3 = 34 Ω. Part A) Ignore internal resistance of the batteries. Express your answers using two significant figures. Enter your answers numerically separated by commas. Part B) Which way is I1 directed? Part C) Which way is I2 directed? Part D) Which was is I3 directed? Part E) Assume each battery has internal resistance 1.3 Ω .Express your answers using two significant figures. Enter your answers numerically separated by commas. Part F) Directions of all I? Sorry for the length! thank you!
A standard 100 W (120 V) lightbulb contains a 7.0-cm-long tungsten filament. The high- temperature resistivity of tungsten is 9.0 × 10-7 Ω m. Part A What is the diameter of the filament? Express your answer with the appropriate units. d = Submit μÅ Value Request Answer Units ****** **** ?
A flash unit for a camera has a capacitance of 1800 uF . Part A What resistance is needed in this RC circuit if the flash is to charge to 90% of its full charge in 22 s? Express your answer using two significant figures. [ΨΕΙ ΑΣΦ R = Submit Previous Answers Request Answer ? ΚΩ
A voltage source, V, supplying 100 V, is connected to two resistors R1, with a resistance of 400Ω, and R2, with a resistance of 550Ω. R1 and R2 are in series. The voltage source has an internal resistance Ri, which is equal to 50Ω. Draw and annotate an electrical circuit model for this circuit. Use, as a minimum, V, I, R1, R2 and Ri to annotate your diagram. Find the current, I, that flows through the circuit, in Amps. Find the voltage drops across the resistors R1 and R2, in Volts.
A 120 µF defibrillator capacitor is charged to 1500 V. When fired through a patient's chest, it loses 95% of its charge in 40 ms. Part A What is the resistance of the patient's chest? Express your answer with the appropriate units. HÀ ? R= Value Units Submit Request Answer
2 Please help keep in mind the 7 basic units and watch the sig figs. Please write in standard form need to see all the numbers in solution thank you so much
A 10 μF capacitor initially charged to 25 μC is discharged through a 1.4 kΩ resistor. Part A How long does it take to reduce the capacitor's charge to 10 μC? Express your answer with the appropriate units.
An ammeter whose internal resistance is 60 2 reads 5.43 mA when connected in a circuit containing a battery and two resistors in series whose values are 500 n and 450 2. Part A What is the actual current when the ammeter is absent? Express your answer using two significant figures. I = A
Review I Constants ▼ Part A For the circuit shown in the figure(Figure 1) find the current through each resistor. Express your answers using two significant figures. Enter your answers numerically separated by commas. I2 n, I4 n, I6 n, I12 n, Is n = A %3D Submit Request Answer Part B For the circuit shown in the figure find the potential difference across each resistor. Express your answers using two significant figures. Enter your answers numerically separated by commas. Figure 1 of 1 ΑΣφ ? AV2 n, AV4 2, AV6 2, AV12 o, AV3 n = V Submit Request Answer 24 VE 6 0 12 N Provide Feedback Next > w

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