Homework Answers
The limitations are,
The resistance of ammeter is not zero, which will introduce error
Also the resistance of voltmeter is not infinite.
These resistance should be known for accurate calculations.
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A cell with emf 15V and internal resistance 5.60 is connected in series to an ammeter...
solve Q11 & Q12 Using the diagram below, complete the following a) Calculate the wavelength of...
solve Q11 & Q12
Using the diagram below, complete the following a) Calculate the wavelength of the photon that would ionise an electron from the ground state, b) Calculate the wavelength of the photon that would excite an electron from the n-2 to the n 5 energy level. c) An incoming electron collides with an atomic electron at energy level n-2, rising it to energy level n 3. If the initial kinetic energy of the incoming electron was 3.54ev calculate...
A battery has an emf of 12.0 V and an internal resistance of 0.050 0. Its terminals are connected to a load resistance of 3.00 V.
A battery has an emf of 12.0 V and an internal resistance of 0.050 0. Its terminals are connected to a load resistance of 3.00 V. (A) Find the current in the circuit and the terminal voltage of the battery(B) Calculate the power delivered to the load resistor, the power delivered to the internal resistance of the battery, and the power delivered by the battery
A battery has an emf of 12.0 V and an internal resistance of 0.210 Q. Its...
A battery has an emf of 12.0 V and an internal resistance of 0.210 Q. Its terminals are connected to a load resistance of 3.00 . Circuit diagram of a source of emf (in this case, a battery), of internal resistance r, connected to an external resistor of resistance R. for ning R (a) Find the current in the circuit and the terminal voltage of the battery. SOLUTION Conceptualize Study the figure, which shows a circuit consistent with the problem...
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?
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 2.95-V lithium cell having an internal resistance of 4.40 , by placing a 1.00-kn voltmeter across its terminals. (a) What current flows? (Give your answer to at least four significant figures.) (b) Find the actual terminal voltage to the nearest 0.001 V. (Give your answer to at least four significant figures.) (c) To see how close the measured terminal voltage is to the emf, calculate their difference.
A battery with an emf of 12.00 V has an internal resistance r.When connected to...
A battery with an emf of 12.00 V has an internal resistance r. When connected to a resistor R, the terminal voltage is 11.70 V and the current is 0.20 A.A) What is the value of the external resistor R?B) What is the internal resistance r of the battery?C) What is the energy dissipated in the battery's internal resistance in 3.7 minutes?D) When a second identical battery is added in series and the external resistor is R = 28 Ohms...
A battery with an emf of 12.00 V has an internal resistance r. When connected to...
A battery with an emf of 12.00 V has an internal resistance r. When connected to a resistor R, the terminal voltage is 11.70 V and the current is 0.120 A. The value of the external resistor is 97.5 ohms and the value of the internal resistor is 2.50 ohms. What is the energy dissipated in the battery's internal resistance in 4.20 minutes?
A battery with an emf of 3.00 V has an internal resistance r. When connected to...
A battery with an emf of 3.00 V has an internal resistance r. When connected to a resistor R, the terminal voltage is 2.90 V and the current is 0.16 A. 1. What is the value of the external resistor R? 2. What is the internal resistance r of the battery? 3. What is the energy dissipated in the battery's internal resistance in 1.6 minutes? 4. When a second identical battery is added in series and the external resistor is...
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...
emf In the circuit above, the switch is closed for a short time. The readings are...
emf In the circuit above, the switch is closed for a short time. The readings are then recorded from the ammeter and the voltmeter and shown in the table below. Voltmeter Readings (V) Ammeter Readings (mA) 6.75 30 6.00 60 5.25 90 4.50 120 3.00 180 a) Draw a graph on graph paper of Voltmeter Readings against Ammeter Readings b) Find the following information from the graph: D) EMF of the battery b) Internal Resistance of the battery. c) A...
solve Q11 & Q12
Using the diagram below, complete the following a) Calculate the wavelength of the photon that would ionise an electron from the ground state, b) Calculate the wavelength of the photon that would excite an electron from the n-2 to the n 5 energy level. c) An incoming electron collides with an atomic electron at energy level n-2, rising it to energy level n 3. If the initial kinetic energy of the incoming electron was 3.54ev calculate...
A battery has an emf of 12.0 V and an internal resistance of 0.210 Q. Its terminals are connected to a load resistance of 3.00 . Circuit diagram of a source of emf (in this case, a battery), of internal resistance r, connected to an external resistor of resistance R. for ning R (a) Find the current in the circuit and the terminal voltage of the battery. SOLUTION Conceptualize Study the figure, which shows a circuit consistent with the problem...
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?
Suppose you measure the terminal voltage of a 2.95-V lithium cell having an internal resistance of 4.40 , by placing a 1.00-kn voltmeter across its terminals. (a) What current flows? (Give your answer to at least four significant figures.) (b) Find the actual terminal voltage to the nearest 0.001 V. (Give your answer to at least four significant figures.) (c) To see how close the measured terminal voltage is to the emf, calculate their difference.
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...
emf In the circuit above, the switch is closed for a short time. The readings are then recorded from the ammeter and the voltmeter and shown in the table below. Voltmeter Readings (V) Ammeter Readings (mA) 6.75 30 6.00 60 5.25 90 4.50 120 3.00 180 a) Draw a graph on graph paper of Voltmeter Readings against Ammeter Readings b) Find the following information from the graph: D) EMF of the battery b) Internal Resistance of the battery. c) A...
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