# Tag Info

1 vote

### Inductor in DC circuits

It may be easier to use an analogy that corresponds more to our physical world around us. When you apply a force to accelerate a mass, it's inertia immediately ...

### Inductor in DC circuits

There's a problem with trying to argue around causation in inductor circuits. The formula for voltage and rate of change of current is $V=L\frac{di}{dt}$. This is an equation, it asserts the two ...

### Transient analysis with charged and uncharged inductor in series

The initial current seems distracting, The focus should be on the voltage aross $L_2$. Place a resistor $R_x$ in parallel with $L_2$. Pretend that $L_1$ is a current source for now. The ...
1 vote

### What's the potential difference across gap a and gab b

A capacitor cannot be modeled as a gap, and a gap cannot be modeled as a capacitor. For analysis of a steady state system the capacitors can be removed but the voltages remain. as well, the inductors ...
1 vote

### What's the potential difference across gap a and gab b

It would be undefined if they were just gaps. But in the circuit they are not gaps. They are two identical 1F capacitors, so before flipping the switch, both are fully charged to 1/3 of 100V.
1 vote
Accepted

### What's the potential difference across gap a and gab b

Both are correct. Our at least, they're not wrong: if we actually model these things as gaps, their voltages are completely undefined. They might just as well be a=1099, b=-1033. If we, however, model ...
1 vote

Well, the voltage- and current relation in a capacitor is given by: $$\text{I}_\text{C}\left(t\right)=\text{V}_\text{C}'\left(t\right)\text{C}\tag1$$ So, when $\displaystyle\text{I}_\text{C}\left(t\... 0 votes ### Transient response of capacitor connected to current source with no resistor Start with the integral equation. The voltage across a capacitor is equal to the integral of the current as a function of time. If the current is a constant, it falls out of the integral. That ... 4 votes Accepted ### Transient response of capacitor connected to current source with no resistor A capacitor that is fed with a constant current will experience a constant voltage rise. \frac{dV}{dt}=\frac{I}{C} 0 votes ### Laplace transform of multiple sources in a circuit For t < t0 = 0 sec, the reactive devices of the right circuit are all charged, so a possible equivalent circuit is the following. It allows us to determine the transient trend of voltages and ... 1 vote Accepted ### First order RC highpass filter input capacitance Ignoring for now the rising and falling edge transition time, you have three cases to worry about: The 50% duty cycle pulse period is more than 10 times shorter than the RC$\tau\\$. In this case, ...

Top 50 recent answers are included