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_The time constant of an inductance coil is 2.0x 10^-3s.When a 90 Ω resistance is joined in series, then thetime constant becomes 0.5x 10^-3 s. The inductance andresistance of the coil are |
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Answer» Time constant = L/R Given time constant = 2x10^-3 and R = 90 ohms Therefore L = 2x90 x 10^-3 = 180 x 10^-3 When T = 0.5 x 10^-3, R = 180x10^-3 /0.5 x 10^-3 = 360 ohms Time constant = L/R Given time constant = 2x10^-3 and R = 90 ohms Therefore L = 2x90 x 10^-3 = 180 x 10^-3 When T = 0.5 x 10^-3, R = 180x10^-3 /0.5 x 10^-3 = 360 ohms |
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