Engineering, 22.07.2021 09:50 vava19

# For the RL circuit, find the inductor current before t=0, after t=0 & long after t=0, equivalent R, time constant and an expression for the inductor current
For the RL circuit, the switch has been closed for a long time before it opens at time t=0

a) Find the inductor current right before t=0

- b) inductor-current right after t=0

- c) inductor-current a long time after the switch is open

d) Find the equivalent resistance that the inductor sees after the switch opens?

e) Find the time constant for t>0

f) Find an expression for the indicator current i(t) for t>0

Answers: 2

Engineering, 04.07.2019 18:10

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

Answers: 1

Engineering, 04.07.2019 18:10

The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false

Answers: 2

Engineering, 04.07.2019 18:10

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.

Answers: 3

Engineering, 04.07.2019 18:10

Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented

Answers: 2

For the RL circuit, find the inductor current before t=0, after t=0 & long after t=0, equivalent...

Computers and Technology, 10.03.2020 18:36

Mathematics, 10.03.2020 18:36

Mathematics, 10.03.2020 18:36

English, 10.03.2020 18:37