A 1 One Of Your Classmates Call Him Jim Has Worked Out The Solution To A Current Division Problem As Shown On The At 1 (209.43 KiB) Viewed 44 times
Can you do Question 3, 4, and 1
there is some additional information for question number 1 below
A 1 One Of Your Classmates Call Him Jim Has Worked Out The Solution To A Current Division Problem As Shown On The At 2 (74.32 KiB) Viewed 44 times
a. 1. One of your classmates (call him Jim) has worked out the solution to a current division problem as shown on the attached page. This problem will involve checking Jim's answer. We will not simply re-work the problem as a current division problem; rather we will do some specific checks on his specific answer. Check Jim's answer for the two currents by checking KCL. Does this check seem to confirm Jim's answer or does it indicate that it is incorrect? b. Now check Jim's answer by computing the voltage across the 8 kg resistor and then the voltage across the 6 kN resistor, and then checking KVL. Does this check seem to confirm Jim's answer or does it indicate that it is incorrect? 2. Problem 2.24, p. 68, Note first that the current in the wire connecting the two portions is zero. Can you see why this must be so? Hint: make the entire right portion of the circuit (dependent source and 2 resistors) a super-node and write KCL for that super-node. The zero current in that wire means that the right portion of the circuit does not affect the left portion. However, the left portion does affect the right portion since 1, is in the left portion, and it is the dependency variable for the dependent source in the right portion. So, you can analyze the left portion of the circuit first, then use the result to analyze the right portion of the circuit. 3. A certain type of ceiling light has a resistance of 300 N. Suppose 9 of these lights are linked in parallel to illuminate a hallway, powered by an ideal voltage source (also in parallel with the lamps). In this configuration, it is determined that each light consumes 1.5 W of power. What is the equivalent resistance seen by the source powering all 8 lamps ? b. What is the voltage of the ideal voltage source? c. How much current must the wiring be able to carry without overheating (that is, what is the maximum current in any wire in the circuit)? 4. It is pretty easy to show that the equivalent resistance of a series connection of R, and R2 is larger than or equal to either R, or R2. For this problem, prove (in general) that the equivalent resistance of a parallel connection of R, and R2 is smaller than or equal to either R, or R2. a.
Find the currents I and Iq in the circuit below. I 10mA BI (6kr ska - 10mA 5.71 mA Skn + 6k.2 bkn Iz- loma 5 - 4.29 mA okoh + bkn Solutions I - 5.71 mA Iz = -4.29 mA
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!