Solve Transient Analysis Problem: Find I0

Thread starter php
Start date Mar 26, 2009
Tags

Analysis Transient Transient analysis

AI Thread Summary

The discussion focuses on solving a transient analysis problem related to current in an electrical circuit. The user has calculated the inductor current IL(t) as 6mA(1 - exp(-100000t)) by assuming iL=0 at t=0. However, they are struggling to determine how the initial current I0 is derived in the context of the problem. The user seeks assistance in understanding the calculation of I0. Clarification on this point is requested to complete the analysis.

Mar 26, 2009

php

i was trying to solve this question(file attached), but i can only come up with the answer:

i assumed i_L=0 at t=0, hence arrived at this:

I_L(t) = 6mA(1 - exp(-100000t))

i can't figure out how I_o came about.

can someone come it my rescue and tell me how the I₀ came into play.

Kind Regards,

Physics news on Phys.org

Mar 26, 2009

php

anyone to help?

Thread 'I've come across another fluid pressure problem I don't understand'

Neglect gravity other than that of water; neglect friction. F1=ρgsh=1000*10*1*(1+4)=50000 N; F1=ρgsh=1000*10*0.1*4=4000 N; F3=50000-4000=46000 N?

View full post »

Thread 'Struggling to understand the concept of this question (ice cube in water optics question)'

TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...

View full post »

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...

View full post »