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Suppose you measure the terminal voltage of a 2.95-V lithium cell having an internal resistance of...
Suppose you measure the terminal voltage of a 1.585V alkaline cell having an internal resistance of...
Suppose you measure the terminal voltage of a 1.585V alkaline
cell having an internal resistance of 0.100 Ω by placing a 1.00kΩ
voltmeter across its terminals. (See figure.)
What current flows?
A. 1.59 mA
B. 159 mA
C. 1.58 mA
D. 15.9 A
Find the terminal voltage.
A. 1.5850 V (need four digits to see the difference)
B. 1.5852 V
C. 1.5848 V
D. 1.6850 V
To see how close the measured terminal voltage is to the
emf, calculate their...
Calculate the terminal voltage for a battery with an internal resistance of 0.750 Ohm and an...
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...
With a 1500 MΩ resistor across its terminals, the terminal voltage of a certain battery is...
With a 1500 MΩ resistor across its terminals, the terminal voltage of a certain battery is 2.60 V . With only a 5.11 Ω resistor across its terminals, the terminal voltage is 1.80 V Part A Find the internal emf of this battery. Express your answer in volts to three significant figures. Part B Find the internal resistance of this battery. Express your answer in ohms to three significant figures. Part C What would be the terminal voltage if the...
When a battery voltage is measured by placing a high-resistance voltmeter across the terminals of the...
When a battery voltage is measured by placing a high-resistance voltmeter across the terminals of the battery, the voltmeter reads 6.3V. With the voltmeter leads still attached, the battery terminals are then connected to a resistor in series with an ammeter. In this arrangement, the ammeter reads 150 mA, and the voltmeter reads 5.9V. What are the emf and the internal resistance of the battery?
A battery with EMF 90.0 V has internal resistance Rb = 9.93 A. What is the...
A battery with EMF 90.0 V has internal resistance Rb = 9.93 A. What is the reading Vv of a voltmeter having total resistance Rv = 490 Ω when it is placed across the terminals of the battery? Express your answer with three significant figures. B. What is the maximum value that the ratio Rb/Rv may have if the percent error in the reading of the EMF of a battery is not to exceed 5.00 %? Express your answer with...
A battery with EMF 90.0 V has internal resistance R_b = 9.10 Ohm. What is the...
A battery with EMF 90.0 V has internal resistance R_b = 9.10 Ohm. What is the reading V_v of a voltmeter having total resistance R_v = 470 Ohm when it is placed across the terminals of the battery? Express your answer with three significant figures. What is the maximum value that the ratio R_b/R_v may have if the percent error in the reading of the EMF of a battery is not to exceed 3.50%? Express your answer with three significant...
A cell with emf 15V and internal resistance 5.60 is connected in series to an ammeter...
A cell with emf 15V and internal resistance 5.60 is connected in series to an ammeter and a 0-3.9M2 variable resistor. A voltmeter is connected across the terminals of the cell a) Sketch the circuit diagram b) Describe how this circuit can be used to obtain a value for the emf of the cell c) Sketch and label thegraph d) Calculate the terminal voltage when a current of 87.9mA is measured by the ammeter e) Calculate the load resistance when...
A battery with EMF 90.0 V has internal resistance Rb = 8.95 Ω . Part A...
A battery with EMF 90.0 V has internal resistance Rb = 8.95 Ω . Part A What is the reading Vv of a voltmeter having total resistance Rv = 440 Ω when it is placed across the terminals of the battery? Vv = 88.2 V Part B What is the maximum value that the ratio Rb/Rv may have if the percent error in the reading of the EMF of a battery is not to exceed 5.00 % ? Express your...
Calculate the terminal voltage of a 8.3100 V lithium cell in a digital wristwatch that draws...
Calculate the terminal voltage of a 8.3100 V lithium cell in a digital wristwatch that draws 0.2800 mA and the cells internal resistance is 5.7500 1. Answer should be in the correct number of sig. figs. . V
Calculate the terminal voltage of a 5.9500 V lithium cell in a digital wristwatch that draws...
Calculate the terminal voltage of a 5.9500 V lithium cell in a digital wristwatch that draws 0.4900 mA and the cells internal resistance is 6.9500 Ω. Answer should be in the correct number of sig. figs. .
Suppose you measure the terminal voltage of a 1.585V alkaline
cell having an internal resistance of 0.100 Ω by placing a 1.00kΩ
voltmeter across its terminals. (See figure.)
What current flows?
A. 1.59 mA
B. 159 mA
C. 1.58 mA
D. 15.9 A
Find the terminal voltage.
A. 1.5850 V (need four digits to see the difference)
B. 1.5852 V
C. 1.5848 V
D. 1.6850 V
To see how close the measured terminal voltage is to the
emf, calculate their...
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...
When a battery voltage is measured by placing a high-resistance voltmeter across the terminals of the battery, the voltmeter reads 6.3V. With the voltmeter leads still attached, the battery terminals are then connected to a resistor in series with an ammeter. In this arrangement, the ammeter reads 150 mA, and the voltmeter reads 5.9V. What are the emf and the internal resistance of the battery?
A battery with EMF 90.0 V has internal resistance R_b = 9.10 Ohm. What is the reading V_v of a voltmeter having total resistance R_v = 470 Ohm when it is placed across the terminals of the battery? Express your answer with three significant figures. What is the maximum value that the ratio R_b/R_v may have if the percent error in the reading of the EMF of a battery is not to exceed 3.50%? Express your answer with three significant...
A cell with emf 15V and internal resistance 5.60 is connected in series to an ammeter and a 0-3.9M2 variable resistor. A voltmeter is connected across the terminals of the cell a) Sketch the circuit diagram b) Describe how this circuit can be used to obtain a value for the emf of the cell c) Sketch and label thegraph d) Calculate the terminal voltage when a current of 87.9mA is measured by the ammeter e) Calculate the load resistance when...
Calculate the terminal voltage of a 8.3100 V lithium cell in a digital wristwatch that draws 0.2800 mA and the cells internal resistance is 5.7500 1. Answer should be in the correct number of sig. figs. . V
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