A 33 k ohm resistor has a maximum power rating of 1/4 W. What is the maximum vol

Question

A 33 k ohm resistor has a maximum power rating of 1/4 W. What is the maximum voltage that can be applied to the resistor? What is the maximum current that can flow through the resistor? For this circuit, answer the following questions, keeping in mind the goal of solving for REQ. Draw the circuit on your solution and proceed. The 20 ohm resistor and 30 ohm resistor are electrically in parallel. (True or False) The 28 ohm resistor and 30 ohm resistor are electrically in series. (True or False) The 60 ohm resistor and 30 ohm resistor are electrically in parallel. (True or False) The 28 ohm resistor and 60 ohm resistor are electrically in series (True or False) (Caution: remember that in finding REQ, the'rest of the circuit' is considered to be connected to the circuit inputs. Solve for REQ. (Check: you should find the answer to be 24 ohms) Using only 1k ohm resistors, synthesize a resistor of 3/5 k ohm and a resistor of 5/3 k ohm. Use no more than 5 3 four 1 k ohm resistors in each case. (This question from an MIT open course website).

Explanation / Answer

a) True b( False c) False d) False e) first combine 20 and 30 1/R = 1/20 + 1/30 = 3/60 + 2/60 = 5/60 = 1/12 R = 12 now combine with 28 12+ 28 = 40 this combines in parallel with 60 ohm 1/ R = 1/60 + 1/40 = 4/240 + 6/240 = 10/240 =1/24 R = 24

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