Class Management | Help HW#6 Begin Date: 9/27/2020 12:01:00 AM -- Due Date: 10/6/2020 11:59:00 PM End Date: 12/4/2020 11:59:00 PM (7%) Problem 4: Consider the three resistors R1 = 14 ?, R2 = 47 ?, and R3 = 89 ? in the configuration shown in the figure. A potential difference ?V = 5.5 V is applied between A and B. (diagram: A -- R1 -- node -- parallel of R2 and R3 -- B) theexpertta.com Part (a) Express the equivalent resistance Re of the combination of R2 and R3 in terms of R2 and R3: Re = Part (b) Express the total resistance R of the combination of all three resistors in terms of R1, R2, and R3. Part (c) Calculate the numerical value of the total resistance R in ?. Part (d) Express the current I through R1 in terms of the potential difference ?V between A and B and the equivalent resistance R. Part (e) Calculate the numerical value of I in A. Part (f) Express the voltage across R2, ?V2, in terms of ?V, I, and R1. Part (g) Express the current I2 through R2 in terms of ?V2 and R2. Part (h) Calculate the numerical value of I2 in A. Part (i) Calculate the numerical value of I3 through R3.
Added by Nuria M.
Close
Step 1
This means that the current flowing through each resistor is the same. Show moreβ¦
Show all steps
Your feedback will help us improve your experience
Krishna G and 51 other Physics 101 Mechanics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Madhur L.
Problem 4: A capacitor of capacitance C = 9.5 ΞΌF is initially uncharged. It is connected in series with a switch of negligible resistance, a resistor of resistance R = 14 kΞ©, and a battery which provides a potential difference of VB = 45 V. Part (a) Calculate the time constant Ο for the circuit in seconds. Part (b) After a very long time after the switch has been closed, what is the voltage drop VC across the capacitor in terms of VB? Part (c) Calculate the charge Q on the capacitor a very long time after the switch has been closed in C. Part (d) Calculate the current I a very long time after the switch has been closed in A. Part (e) Calculate the time t after which the current through the resistor is one-third of its maximum value in s. Part (f) Calculate the charge Q on the capacitor when the current in the resistor equals one-third its maximum value in C.
(8%) Problem 11: In order to measure the properties of a battery, several resistors are connected to the battery in series and the terminal voltage is measured. In the first case, the resistor has resistance R1 = 5.5 Ξ and the terminal voltage is ΞV1 = 4.6 V. In the second case, the resistor has resistance R2 = 72 Ξ and the terminal voltage ΞV2 = 6.5 V. 20% Part (a) Express the current through a battery I using the voltage across the terminal ΞV and the resistance of the circuit R. I = ΞV/R 20% Part (b) Express the emf of the battery using the variables for current I, internal resistance r, and external resistance R. Ξ΅ = I(R + r) 20% Part (c) Express the emf in terms of r, R and ΞV. Ξ΅ = ΞV/R (R + r) 20% Part (d) Find the numerical value of r in Ξ©. 20% Part (e) Find the numerical value of Ξ΅ in V.
Shaiju T.
Recommended Textbooks
University Physics with Modern Physics
Physics: Principles with Applications
Fundamentals of Physics
Watch the video solution with this free unlock.
EMAIL
PASSWORD