Let’s say we replace a network of capacitors with one capacitor of value Ceq. In terms...
Let’s say we replace a network of capacitors with one capacitor of value Ceq. In terms of charge, voltage, and energy, can Ceq truly represent the entire network? Explain why or why not.
Homework Answers
Yes the equivalent capacitor Ceq can represent the entire network, bacause charge Qeq= Q1+Q2+............; Veq= V1+V2+..............; total energy will also be conserved because Eeq=1/2*Ceq*Veq2
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Let’s say we replace a network of capacitors with one capacitor
of value Ceq. In terms...
1. We place two capacitors with identical ε and dimensions outlined in Fig. 1 under the...
1. We place two capacitors with identical ε and dimensions outlined in Fig. 1 under the same voltage (i.e. we apply the same voltage source). (a) Which capacitor has a larger capacitance and why? (b) Which capacitor has more voltage? This should be trivial. (c) Which capacitor has more charge? Please answer in terms of Q = CV. (d) Which capacitor stores more energy? You may discuss in terms of either U = 72 CV2 or 12 Q²/C. 2. We...
Question 1 1 pts In the equation Q = CV, what does the Q represent? The...
Question 1 1 pts In the equation Q = CV, what does the Q represent? The point charge with which you can measure capacitance. The amount of charge on the positive plate of the capacitor. The maximum amount of charge that capacitor can hold. The total charge on the capacitor. Question 2 1 pts Doc Physics calls "capacitance" the "efficiency of storing without raising much." charge, voltage charge, energy energy, temperature voltage, charge 0 Question 3 1 pts When integrating...
In case of replace equipment what we can say about net present value rule?
In case of replace equipment what we can say about net present value rule?
1- Capacitor B has half of the capacitor A. Compare the load of capacitor A with...
1- Capacitor B has half of the capacitor A. Compare the load of capacitor A with capacitor B charge when the two capacitors remain connected in series with a battery for a long time. 2- A capacitor immersed in the air has capacitance equal to 12.5 μF when the potential difference at its terminals is 24.0V. If we insert a constant material dielectric equal to 3.75 between the capacitor plates, filling the space between them completely, (a) how much energy...
1. Consider this circuit with resistors and capacitors. The R2 battery V1 has a voltage of...
1. Consider this circuit with resistors and capacitors. The R2 battery V1 has a voltage of 9 V, the resistors R1 and R2 have values of 100 Ω and 50 Ω, and the capacitor C1 has a value of 100 nF. Initially, the switches S1 and S2 are open. S2 (10 points) Once we close S1, what will the voltage across Rl and Cl be? How much current initially flows around the closed loop? (10 points) The current in part...
1. Say that we are given a maximum flow in the network. Then the capacity of one of the edges e i...
1. Say that we are given a maximum flow in the network. Then the capacity of one of the edges e is increased by 1. Give an algorithm that checks if the maximum flow has increased 2. When we increase the capacity of some edge by 5 can it be that the flow does not increase at all? 3. When we increase the capacity of an edge by 5, can the flow grow by 7? Please write time complexity for...
Can I add error bars for one measurement? let's say that we have energy value for...
Can I add error bars for one measurement? let's say that we have energy value for each temperature degree, and when plotting the energy vs. temperature, we get a scatter plot. Can we add error bars to the point in this plot? or does the experiment has to be repeated in order to get multiple trials.
4.2 Dielectric materials used in the manufacture of capacitors are characterized bv conductivities that are small...
4.2 Dielectric materials used in the manufacture of capacitors are characterized bv conductivities that are small but not zero. Therefore, a charged capacitor loses its charge by slowly leaking across the dielectric. Consider a parallel-plate capacitor with plate spacing d and area A. The volume between the plates is filled with material having dielectric constant K but also with finite resistivity ρ a. What is the capacitance C, in terms of eo, K, A and d? b. What is the...
Can I add error bars for one measurement? let's say that we have energy value for...
Can I add error bars for one measurement? let's say that we have energy value for each temperature degree, and when plotting the energy vs. temperature, we get a scatter plot. Can we add error bars to the point in this plot? or does the experiment has to be repeated in order to get multiple trials. In other words, Standard deviation and standard error are used in calculation and generating error bars. How these quantities are calculated if I only...
A spherical capacitor has a spherical inner plate with radius a and outer plate with radius...
A spherical capacitor has a spherical inner plate with radius a
and outer plate with radius b. The charge on the inner plate is +Q
and on the outer plate it is -Q. We have filled a cone shaped
region of angle θ (0 ≤ θ ≤ π) with a dielectric with constant κ.
The dielectric fills the entire volume between the two spheres
inside the cone. You may neglect any fringing effects between the
dielectric and the vacuum (dielectric...
1. We place two capacitors with identical ε and dimensions outlined in Fig. 1 under the same voltage (i.e. we apply the same voltage source). (a) Which capacitor has a larger capacitance and why? (b) Which capacitor has more voltage? This should be trivial. (c) Which capacitor has more charge? Please answer in terms of Q = CV. (d) Which capacitor stores more energy? You may discuss in terms of either U = 72 CV2 or 12 Q²/C. 2. We...
Question 1 1 pts In the equation Q = CV, what does the Q represent? The point charge with which you can measure capacitance. The amount of charge on the positive plate of the capacitor. The maximum amount of charge that capacitor can hold. The total charge on the capacitor. Question 2 1 pts Doc Physics calls "capacitance" the "efficiency of storing without raising much." charge, voltage charge, energy energy, temperature voltage, charge 0 Question 3 1 pts When integrating...
1. Consider this circuit with resistors and capacitors. The R2 battery V1 has a voltage of 9 V, the resistors R1 and R2 have values of 100 Ω and 50 Ω, and the capacitor C1 has a value of 100 nF. Initially, the switches S1 and S2 are open. S2 (10 points) Once we close S1, what will the voltage across Rl and Cl be? How much current initially flows around the closed loop? (10 points) The current in part...
4.2 Dielectric materials used in the manufacture of capacitors are characterized bv conductivities that are small but not zero. Therefore, a charged capacitor loses its charge by slowly leaking across the dielectric. Consider a parallel-plate capacitor with plate spacing d and area A. The volume between the plates is filled with material having dielectric constant K but also with finite resistivity ρ a. What is the capacitance C, in terms of eo, K, A and d? b. What is the...
A spherical capacitor has a spherical inner plate with radius a
and outer plate with radius b. The charge on the inner plate is +Q
and on the outer plate it is -Q. We have filled a cone shaped
region of angle θ (0 ≤ θ ≤ π) with a dielectric with constant κ.
The dielectric fills the entire volume between the two spheres
inside the cone. You may neglect any fringing effects between the
dielectric and the vacuum (dielectric...
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