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(3) If resistors of R1, R2 and R3 ohms are comnected in parallel to make an R-ohm resistor, the value of R can be found from the equation 1 1 1 + R2 1 R R1 R3 ƏR when R1 = 30, R2 = 45 Then the value of and R3 = 90 ohms is (a) 1/3 (b) 1/32 (c) 1/452 (d) None

(3) If resistors of R1, R2 and R3 ohms are comnected in parallel to make an R-ohm resistor, the value of R can be found from the equation 1 1 1 + R2 1 R R1 R3 ƏR when R1 = 30, R2 = 45 Then the value of and R3 = 90 ohms is (a) 1/3 (b) 1/32 (c) 1/452 (d) None

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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(3) If resistors of R1, R2 and R3 ohms are comnected in parallel to make an R-ohm resistor, the value of R can be found from the equation 1 1 1 1 R R1 R2 R3 ƏR when R1 = 30, R2 = 45 Then the value of and R3 = 90 ohms is (a) 1/3 (b) 1/3? (c) 1/452 (d) None
Transcribed Image Text:(3) If resistors of R1, R2 and R3 ohms are comnected in parallel to make an R-ohm resistor, the value of R can be found from the equation 1 1 1 1 R R1 R2 R3 ƏR when R1 = 30, R2 = 45 Then the value of and R3 = 90 ohms is (a) 1/3 (b) 1/3? (c) 1/452 (d) None
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