Recent content by wcjy

i don't need to but is it even possible, since they did not give angle ##\theta##

From the question, I_o is without phase angle. where I = I_o ∠ Φ. That is why i didn't account for the phase angle. side note: how do you input latex for like I_o in the text

thank you so much!

Hi, my school has no answer key provided. and would like to check if this is correct. Thanks!

Got B = 9. My school doesn't provide answers, hence could someone double check if my answers is right? Thanks!

Thank You Very Much!

oh so if I(0) = 0, A = 0 di/dt = -6 B = -12 the rest remains the same?

Hello, this is my working. My professor did not give any answer key, and thus can I check if I approach the question correctly, and also check if my answer is correct at the same time. for t < 0, V(0-) = V(0+) = 60V I(0) = 60 / 50 = 1.2A When t > 0, $$α = \frac{R}{2L}$$ $$α =...

Hello, this is my working. My professor did not give any answer key, and thus can I check if I approach the question correctly, and also check if my answer is correct at the same time. When t < 0, capacitor acts as open circuit, $$V(0-) = V(0+) = 9V$$ When t = infinity, $$V( ∞) = 5V$$ (because...

yea the answer is wrong!

the system said the correct answer was 0.123. But anyways thanks, many people got 0.112 also. probably the answer is wrong. Gonna check with my professor. My mesh analysis was wrong. I initially got 0.112 as well but i somehow tweak it to 0.123 thinking it was correct. Looking back, the change...

40I is from the current controlled voltage source. Isn't 40I in volts?

Ans: 0.123A Tried mesh analysis and got it but didnt for nodal analysis

ohhh ok i finally get it! Thanks so much!

Is it there will be no diffraction? Im not sure about this Using top slit, the distance travelled, L1 can be found using pythagoras theorem. Number of wavelength can be found by taking the total L1 length and dividing by the wavelength of the laser source. Then to know the phase, just...