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The terms "open-circuit", “short circuit" and “dead short" are used in speaking electricity. Answer the following questions about these three terms: a. What is the value of the resistance of an open circuit? Ω b. What is the value of the resistance of a short circuit? c. What is meant by a “dead short"? 5 DDPasalo-Electrical Engineering Department COE MMSU EE 121: Electrical Circuits I When a switch is open, is the resistance between its terminals high or low? Low What is the resistance of a closed switch (ideally)? Ω Using each of the methods shown in (a) and (b) below, calculate the value of the equivalent resistance of a combination of R, = 5 ohms and R2 = 20 ohms connected in parallel a. Using the equation: 1/Rquivalent = 1/R, + 1/R2 + 1/R3 = b. Using the equation: Requivalent = (R, x R2) / (R, + R2) =, Ω

The terms "open-circuit", “short circuit" and “dead short" are used in speaking electricity. Answer the following questions about these three terms: a. What is the value of the resistance of an open circuit? Ω b. What is the value of the resistance of a short circuit? c. What is meant by a “dead short"? 5 DDPasalo-Electrical Engineering Department COE MMSU EE 121: Electrical Circuits I When a switch is open, is the resistance between its terminals high or low? Low What is the resistance of a closed switch (ideally)? Ω Using each of the methods shown in (a) and (b) below, calculate the value of the equivalent resistance of a combination of R, = 5 ohms and R2 = 20 ohms connected in parallel a. Using the equation: 1/Rquivalent = 1/R, + 1/R2 + 1/R3 = b. Using the equation: Requivalent = (R, x R2) / (R, + R2) =, Ω

Electric Motor Control
Electric Motor Control
10th Edition
ISBN:9781133702818
Author:Herman
Publisher:Herman
Chapter4: Symbols
Section: Chapter Questions
Problem 3SQ: What do the following abbreviations stand for? a. SPST b. SPDT c. DPST d. DPDT e. NO f. NC
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1. The terms “open-circuit", “short circuit" and “dead short" are used in speaking electricity. Answer the following questions about these three terms: a. What is the value of the resistance of an open circuit? b. What is the value of the resistance of a short circuit? c. What is meant by a “dead short"? 5 DDPasalo-Electrical Engineering Department COE MMSU EE 121: Electrical Circuits I 2. When a switch is open, is the resistance between its terminals high or low? ¸Low 3. What is the resistance of a closed switch (ideally)? 4. Using each of the methods shown in (a) and (b) below, calculate the value of the equivalent resistance of a combination of R1 = 5 ohms and R2 = 20 ohms connected in parallel a. Using the equation: 1/Requivalent = 1/R, + 1/R2 + 1/R3 = b. Using the equation: Requivalent = (R, x R2) / (R, + R2) = Ω
Transcribed Image Text:1. The terms “open-circuit", “short circuit" and “dead short" are used in speaking electricity. Answer the following questions about these three terms: a. What is the value of the resistance of an open circuit? b. What is the value of the resistance of a short circuit? c. What is meant by a “dead short"? 5 DDPasalo-Electrical Engineering Department COE MMSU EE 121: Electrical Circuits I 2. When a switch is open, is the resistance between its terminals high or low? ¸Low 3. What is the resistance of a closed switch (ideally)? 4. Using each of the methods shown in (a) and (b) below, calculate the value of the equivalent resistance of a combination of R1 = 5 ohms and R2 = 20 ohms connected in parallel a. Using the equation: 1/Requivalent = 1/R, + 1/R2 + 1/R3 = b. Using the equation: Requivalent = (R, x R2) / (R, + R2) = Ω
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