All Questions
38
questions
1
vote
0
answers
124
views
Whats the meaning of Im, Is and Ih
I would like to know what's the meaning for the abbreviations of Im, Is and Ih in leakage currents measurements, as it is depicted in these graphis. Could anyone help me?.
The link of the source is: ...
1
vote
2
answers
88
views
Energy density vs voltage battery
I find on this website the following sentence:
It is said that higher voltage battery have higher energy density. But it appears to me not so evident:
If I consider the 2 following batteries:
If I ...
- 2,478
-1
votes
1
answer
50
views
Are the signals differential?
I want to use this IC for a metering purpose.
Are the signals IxP/IxN & VxP/VxN differential signals?
- 1
0
votes
1
answer
107
views
The two capacitors are in series but positive end of one plate is connected to positive end of the other
Like the title says, my task is to find the initial voltage across the terminals. The two capacitors are in Series with positive end of one plate connected to that of another.
The given information ...
- 153
3
votes
4
answers
3k
views
Power consumption based on voltage and current
I'm a little confused of which value of the voltage to consider for calculating the power consumption.
Here is the scenario of my voltage and current drawn over a period of time.
Vmax = 100 V
...
- 33
5
votes
6
answers
3k
views
Why can't current change instantaneously in a given inductor?
I know the mathematical reason behind this. Given the inductor I-V characteristic we know that:
I understand mathematically that a function which is differentiable must be continuous, but what is the ...
- 163
0
votes
2
answers
76
views
can we trade off electric power for time?
The voltage and current are exchangable for a constant power. Can we increase the power of the source by decreasing the time of the supply ?
From this equation
Power = Energy / Time
The total energy ...
- 15
2
votes
3
answers
244
views
How does voltage operate in an electric circuit regarding conservation of energy? [closed]
I hope you all are having a great day. I have some questions regarding the physics of a closed electric circuit on a microscopic level. Specifically, how energy operates and how voltage is "split&...
2
votes
1
answer
993
views
What is the exact meaning of 0.7V voltage drop in a forward-biased diode?
this question is partially (but not totally) discussed here:
Why do diodes have a voltage drop?
Does the power drop on a diode become entirely heat?
The conclusion is that, in a forward-biased diode ...
- 3,550
0
votes
1
answer
388
views
What does C mean in terms of an energy calculation
I'm a bit of a noob when it comes to EE, so this might be a dumb question, but I find it super interesting and am learning as fast as I can
(1) I saw the following formula on another forum:
"E = ...
- 153
-1
votes
5
answers
148
views
Voltage drop through a resistor for a single charge, contrasted to a non-ohmic component
Recently I have been reading about how transistors and diodes only drop a limited amount of voltage across their leads for a wide range of currents. So the voltage drop per charge (at a given ...
- 197
1
vote
3
answers
253
views
If greater potential energy is toward pos charge, then why PN energy band diagram show lower energy toward pos charge across depletion region?
If in an electric field, greater potential energy and voltage are toward the positive charge and away from negative charge, then why do PN energy band diagrams indicate lower energies toward the ...
- 113
2
votes
2
answers
127
views
Power factor improvement [closed]
There are 3 resistive bulbs (60 watts each) in series fed by 230Vrms from the transformer.
If I apply capacitors in parallel with load I will get more Voltage. The more capacitors, the higher the ...
1
vote
1
answer
190
views
Difficulties with capacitor circuit analysis
I have been given this question by one of my lecturers and have been having difficulty with it. I was wondering if anyone could help me.
In the circuit of Fig. 1, switch SW1 has been closed, and ...
- 11
0
votes
1
answer
93
views
voltage potential energy clearance?
1 coulomb = charge of 6241509074460762607.776 protons(fixed amount of energy passing thru certain point).
So 1 volt = 1 joule(energy) per 1 coulomb.
and 2 volts = 2 joule(energy) per 1 coulomb.
does ...
