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I have a hybrid solar Easun inverter/charger rated power 3000va/2400w 230vac 50/60hz self sensing. The unit is set up with single EU 230v self sensing 50/60hz input to charge battery...
1Electrical Engineering Asked by novice 1 on 2 years ago
In a lot of reference I see divergence like Zce = RE || (beta re + Rb || Rs) / (beta + 1) etc.$$Z_{ce} = R_E || left(frac{beta.r_e...
1Electrical Engineering Asked on 2 years ago
I'm trying to build my first IoT project. I'm using an L298 motor drive, an MCU-6050 6 axis gyroscope and accelerometer and an Arduino Due. When going through their datasheets,...
0Electrical Engineering Asked by Parsa Showkati on 2 years ago
According to Wikipedia, a common emitter amplifier doesn't have big stability without an emitter resistor. When putting an emitter resistor gain is reduced. Why don't we put a base resistor...
4Electrical Engineering Asked on 2 years ago
My input is an SPST Dry contact with the closure of 0.5 seconds. I can energize the closure by 5 VDC if needed. The PCB runs on 5 VDC. I...
0Electrical Engineering Asked by Sam S on 2 years ago
Well, elementary particles have no moment of inertia $I$. But what is the nearest possible answer to the question for a free, spinning electron? In general, one has a...
0Physics Asked on 2 years ago
The FRW metric can be written in conformal coordinates to give:$$ds^2=a^2(eta)(-deta^2+dmathbf{Sigma^2}),$$where $eta$ is the conformal time and $mathbf{Sigma}$ ranges over 3-dimensional space of uniform curvature....
2Physics Asked on 2 years ago
Coercivity of 99.8% pure iron is 1 oe but that of 99.95% pure iron is 0.05 oe.Why such difference while both have same retentivity? Edit: I mean to say if...
1Physics Asked by TheVariant on 2 years ago
Suppose we have a point charge moving inside the halfspace $z>0$ with a given trajectory $r(t)$. Assume that $z>0$ halfspace is Vacuum and the $z<0$ halfspace...
0Physics Asked on 2 years ago
Consider the orbital angular momentum in QM, labeled by $L$ ($mathbf{L}=mathbf{r}timesmathbf{p}$). In spherical coordinate, the operator can be expressed as:begin{equation*}left{begin{aligned} L_x&=frac{hbar}{mathrm{i}}left(-sinphifrac{partial}{partial theta}-cosphicotthetafrac{partial}{partial phi}right)\...
2Physics Asked on 2 years ago
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