i1 i2 i3 R1 R2 R3 E1 E2 E3
Mlanie LaRoche-Boisvert - Electromagnetism Electromagnetism and Optics - Winter 2014 - PH
1
Notes: 1. To submit a problem, just click the ”Submit” button under it.
The ”Submit All” button is not necessary.
Mlanie LaRoche-Boisvert - Electromagnetism Electromagnetism and Optics - Winter 2014 - PH
Consider the following diagram and choose the expressions that are correct. (Give all correct answers in alphabetical order, for example, if A, B and D were correct then input ABD - no spaces, no commas.)
2. A problem accepted as correct by CAPA will be highlighted in green. Once you see this, your problem has been submitted and accepted as correct.
3. If you are trying to obtain the correct number of significant digits, use the ’E’ notation. I.e. 44+56 = 100. is wrong, but 45 + 56 = 1.0e2 is right in the number of significant digits. 4. Use period ”.” to denote decimal point. comma ”,” doesn’t work here.
5. You are encouraged to solve all the problems independently. For questions about the assignment itself, please consult one of your tutors. If you have any questions about the capa system, don’t hesitate to contact [email protected], i’ll be glad to help you.
Good Luck!
Problem 1
2
R1
i1
R3
R2
E3
E1 E2 i2
i3
A) E¡sub¿3¡/sub¿ - E¡sub¿1¡/sub¿ = - i¡sub¿3¡/sub¿ R¡sub¿3¡/sub¿ - i¡sub¿1¡/sub¿ R¡sub¿1¡/sub¿ B) i¡sub¿1¡/sub¿ = - i¡sub¿2¡/sub¿ + i¡sub¿3¡/sub¿ C) E¡sub¿2¡/sub¿ - E¡sub¿1¡/sub¿ = i¡sub¿1¡/sub¿ R¡sub¿1¡/sub¿ + i¡sub¿2¡/sub¿ R¡sub¿2¡/sub¿ D) E¡sub¿1¡/sub¿ - E¡sub¿2¡/sub¿ = i¡sub¿1¡/sub¿ R¡sub¿1¡/sub¿ - i¡sub¿2¡/sub¿ R¡sub¿2¡/sub¿ E) i¡sub¿1¡/sub¿ - i¡sub¿2¡/sub¿ = i¡sub¿3¡/sub¿ F) E¡sub¿2¡/sub¿ - E¡sub¿3¡/sub¿ = i¡sub¿3¡/sub¿ R¡sub¿3¡/sub¿ + i¡sub¿2¡/sub¿ R¡sub¿2¡/sub¿ G) E¡sub¿1¡/sub¿ - E¡sub¿3¡/sub¿ = i¡sub¿1¡/sub¿ R¡sub¿1¡/sub¿ - i¡sub¿3¡/sub¿ R¡sub¿3¡/sub¿ Problem Weight is: 1 Incorrect. Tries 6/6
Problem 2
Mlanie LaRoche-Boisvert - Electromagnetism Electromagnetism and Optics - Winter 2014 - PH
3
Mlanie LaRoche-Boisvert - Electromagnetism Electromagnetism and Optics - Winter 2014 - PH
4
The ammeter shown in the figure below, reads 1.96A.
E1 = 13.0V, R1 = 6.00Ω, R2 = 4.00Ω and R3 = 2.00Ω. a) Calculate I1 . You are correct. Your receipt is 151-6542 b) Calculate I2 . You are correct. Your receipt is 151-4667 c) Calculate E2 . You are correct. Your receipt is 151-9252 Problem 3
a) Using Kirchhoff’s rules, calculate the current in R1 with the directions indicated in the figure above. Assume that R1 = 3.00kΩ, R2 = 4.00kΩ, R3 = 5.00kΩ, E1 = 70.0V, E2 = 65.0V and E3 = 85.0V. You are correct. Your receipt is 151-1149 b) Calculate the current in R2 . You are correct. Your receipt is 151-4250 c) Calculate the current in R3 . You are correct. Your receipt is 151-8588 d) Calculate the magnitude of the potential difference between points c and f . You are correct. Your receipt is 151-4414 Problem 4
Mlanie LaRoche-Boisvert - Electromagnetism Electromagnetism and Optics - Winter 2014 - PH
5
Five resistors with resistance R1 = 2.00 Ω, R2 = 2.00 Ω, R3 = 3.00 Ω, R4 = 6.00 Ω, R5 = 5.00 Ω, are connected to a battery with emf = 8.00 V as shown in the figure. P
R1
R2
Mlanie LaRoche-Boisvert - Electromagnetism Electromagnetism and Optics - Winter 2014 - PH
6
Problem 5
a) The diagram below depicts an RC-circuit where C = 3.50 µF, R1 = 24.5 Ω, R2 = 22.5 Ω, and V0 = 3.6 V. What is the current through R1 immediately after the switch S is closed?
S R5
R1
+ V0 -
R2 C
R3
R4 P'
Capacitor initially uncharged
ε
a) What is the current in resistor R1 ? Problem Weight is: 1 You are correct. Your receipt is 151-5799 b) What is the current in resistor R2 ? Problem Weight is: 1 You are correct. Your receipt is 151-7693 c) What is the current in resistor R3 ?
Problem Weight is: 1 You are correct. Your receipt is 151-3673 b) What is the current through R2 after the switch S has been closed for a very long time? Assume that the battery does not go dead. Problem Weight is: 1 You are correct. Your receipt is 151-7553 Problem 6
Problem Weight is: 1
Problem Weight is: 1
A 2.150nF capacitor with an initial charge of 5.030µC is discharged through a 1.250kΩ resistor. a) Calculate the magnitude of the current through the resistor 8.000µs after the resistor is connected across the terminals of the capacitor.
You are correct. Your receipt is 151-2032 e) What is the current in resistor R5 ?
You are correct. Your receipt is 151-1700 b) What charge remains on the capacitor after 7.000µs?
Problem Weight is: 1
You are correct. Your receipt is 151-5554 c) What is the maximum current in the resistor?
You are correct. Your receipt is 151-4640 d) What is the current in resistor R4 ?
You are correct. Your receipt is 151-7090 f) What is the potential difference (absolute value) between the points P and P ′ ? Problem Weight is: 1 You are correct. Your receipt is 151-3962
You are correct. Your receipt is 151-1020 Problem 7
Mlanie LaRoche-Boisvert - Electromagnetism Electromagnetism and Optics - Winter 2014 - PH
7
The circuit in the figure below contains two resistors, R1 = 5.00kΩ and R2 = 6.00kΩ, and two capacitors, C1 = 5.00µF and C2 = 6.00µF, connected to a battery with emf E = 120V.
a) If no charges exist on the capacitors before switch S is closed, determine the charge on capacitor q1 1.00ms after the switch is closed. You are correct. Your receipt is 151-436 b) Determine the charge on capacitor q2 1.00ms after the switch is closed. You are correct. Your receipt is 151-2110 Problem Set End. You do not need to hit the ”Submit All” button below this line if you have already clicked ”submit” for each individual field.
c Printed from LON-CAPA MSU
Licensed under GNU General Public License
Mlanie LaRoche-Boisvert - Electromagnetism Electromagnetism and Optics - Winter 2014 - PH
8
1
Notes: 1. To submit a problem, just click the ”Submit” button under it.
The ”Submit All” button is not necessary.
Mlanie LaRoche-Boisvert - Electromagnetism Electromagnetism and Optics - Winter 2014 - PH
Consider the following diagram and choose the expressions that are correct. (Give all correct answers in alphabetical order, for example, if A, B and D were correct then input ABD - no spaces, no commas.)
2. A problem accepted as correct by CAPA will be highlighted in green. Once you see this, your problem has been submitted and accepted as correct.
3. If you are trying to obtain the correct number of significant digits, use the ’E’ notation. I.e. 44+56 = 100. is wrong, but 45 + 56 = 1.0e2 is right in the number of significant digits. 4. Use period ”.” to denote decimal point. comma ”,” doesn’t work here.
5. You are encouraged to solve all the problems independently. For questions about the assignment itself, please consult one of your tutors. If you have any questions about the capa system, don’t hesitate to contact [email protected], i’ll be glad to help you.
Good Luck!
Problem 1
2
R1
i1
R3
R2
E3
E1 E2 i2
i3
A) E¡sub¿3¡/sub¿ - E¡sub¿1¡/sub¿ = - i¡sub¿3¡/sub¿ R¡sub¿3¡/sub¿ - i¡sub¿1¡/sub¿ R¡sub¿1¡/sub¿ B) i¡sub¿1¡/sub¿ = - i¡sub¿2¡/sub¿ + i¡sub¿3¡/sub¿ C) E¡sub¿2¡/sub¿ - E¡sub¿1¡/sub¿ = i¡sub¿1¡/sub¿ R¡sub¿1¡/sub¿ + i¡sub¿2¡/sub¿ R¡sub¿2¡/sub¿ D) E¡sub¿1¡/sub¿ - E¡sub¿2¡/sub¿ = i¡sub¿1¡/sub¿ R¡sub¿1¡/sub¿ - i¡sub¿2¡/sub¿ R¡sub¿2¡/sub¿ E) i¡sub¿1¡/sub¿ - i¡sub¿2¡/sub¿ = i¡sub¿3¡/sub¿ F) E¡sub¿2¡/sub¿ - E¡sub¿3¡/sub¿ = i¡sub¿3¡/sub¿ R¡sub¿3¡/sub¿ + i¡sub¿2¡/sub¿ R¡sub¿2¡/sub¿ G) E¡sub¿1¡/sub¿ - E¡sub¿3¡/sub¿ = i¡sub¿1¡/sub¿ R¡sub¿1¡/sub¿ - i¡sub¿3¡/sub¿ R¡sub¿3¡/sub¿ Problem Weight is: 1 Incorrect. Tries 6/6
Problem 2
Mlanie LaRoche-Boisvert - Electromagnetism Electromagnetism and Optics - Winter 2014 - PH
3
Mlanie LaRoche-Boisvert - Electromagnetism Electromagnetism and Optics - Winter 2014 - PH
4
The ammeter shown in the figure below, reads 1.96A.
E1 = 13.0V, R1 = 6.00Ω, R2 = 4.00Ω and R3 = 2.00Ω. a) Calculate I1 . You are correct. Your receipt is 151-6542 b) Calculate I2 . You are correct. Your receipt is 151-4667 c) Calculate E2 . You are correct. Your receipt is 151-9252 Problem 3
a) Using Kirchhoff’s rules, calculate the current in R1 with the directions indicated in the figure above. Assume that R1 = 3.00kΩ, R2 = 4.00kΩ, R3 = 5.00kΩ, E1 = 70.0V, E2 = 65.0V and E3 = 85.0V. You are correct. Your receipt is 151-1149 b) Calculate the current in R2 . You are correct. Your receipt is 151-4250 c) Calculate the current in R3 . You are correct. Your receipt is 151-8588 d) Calculate the magnitude of the potential difference between points c and f . You are correct. Your receipt is 151-4414 Problem 4
Mlanie LaRoche-Boisvert - Electromagnetism Electromagnetism and Optics - Winter 2014 - PH
5
Five resistors with resistance R1 = 2.00 Ω, R2 = 2.00 Ω, R3 = 3.00 Ω, R4 = 6.00 Ω, R5 = 5.00 Ω, are connected to a battery with emf = 8.00 V as shown in the figure. P
R1
R2
Mlanie LaRoche-Boisvert - Electromagnetism Electromagnetism and Optics - Winter 2014 - PH
6
Problem 5
a) The diagram below depicts an RC-circuit where C = 3.50 µF, R1 = 24.5 Ω, R2 = 22.5 Ω, and V0 = 3.6 V. What is the current through R1 immediately after the switch S is closed?
S R5
R1
+ V0 -
R2 C
R3
R4 P'
Capacitor initially uncharged
ε
a) What is the current in resistor R1 ? Problem Weight is: 1 You are correct. Your receipt is 151-5799 b) What is the current in resistor R2 ? Problem Weight is: 1 You are correct. Your receipt is 151-7693 c) What is the current in resistor R3 ?
Problem Weight is: 1 You are correct. Your receipt is 151-3673 b) What is the current through R2 after the switch S has been closed for a very long time? Assume that the battery does not go dead. Problem Weight is: 1 You are correct. Your receipt is 151-7553 Problem 6
Problem Weight is: 1
Problem Weight is: 1
A 2.150nF capacitor with an initial charge of 5.030µC is discharged through a 1.250kΩ resistor. a) Calculate the magnitude of the current through the resistor 8.000µs after the resistor is connected across the terminals of the capacitor.
You are correct. Your receipt is 151-2032 e) What is the current in resistor R5 ?
You are correct. Your receipt is 151-1700 b) What charge remains on the capacitor after 7.000µs?
Problem Weight is: 1
You are correct. Your receipt is 151-5554 c) What is the maximum current in the resistor?
You are correct. Your receipt is 151-4640 d) What is the current in resistor R4 ?
You are correct. Your receipt is 151-7090 f) What is the potential difference (absolute value) between the points P and P ′ ? Problem Weight is: 1 You are correct. Your receipt is 151-3962
You are correct. Your receipt is 151-1020 Problem 7
Mlanie LaRoche-Boisvert - Electromagnetism Electromagnetism and Optics - Winter 2014 - PH
7
The circuit in the figure below contains two resistors, R1 = 5.00kΩ and R2 = 6.00kΩ, and two capacitors, C1 = 5.00µF and C2 = 6.00µF, connected to a battery with emf E = 120V.
a) If no charges exist on the capacitors before switch S is closed, determine the charge on capacitor q1 1.00ms after the switch is closed. You are correct. Your receipt is 151-436 b) Determine the charge on capacitor q2 1.00ms after the switch is closed. You are correct. Your receipt is 151-2110 Problem Set End. You do not need to hit the ”Submit All” button below this line if you have already clicked ”submit” for each individual field.
c Printed from LON-CAPA MSU
Licensed under GNU General Public License
Mlanie LaRoche-Boisvert - Electromagnetism Electromagnetism and Optics - Winter 2014 - PH
8
