Questions tagged [energy]
Energy is defined as the amount of work that can be performed by a force, measured in joules (J). Energy is power integrated over time; power (W) is energy per second (J/s). This is a poor tag to use. Please consider if your question relates to energy as defined in physics; don't use it as a synonym for power or capacity.
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Understanding the flux linkage in transformers
I am having difficulty understanding the concept of flux linkage in transformers, particularly how the secondary winding receives its flux when all the flux is said to be confined to the iron core. I ...
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Best way to calculate Energy used in a circuit
I'm trying to figure out how to calculate energy consumed through my circuit. I can read the current and see the voltage, can obviously calculate the instant power, but I'm fairly certain that I don't ...
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Estimate transient power of crowbar circuit
I am designing a crowbar circuit and for this circuit it is important that the maximal transient energy that goes through the circuit before the fuse trips stays below a certain limit. The setup of ...
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Getting Energy values from the Allegro ACS37800
I am currently using the Allegro ACS37800 IC to monitor power, from what I found on the datasheets and from the internet this IC is capable of calculating the voltage, current, and power. I actually ...
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Construction of a Lagrangian function for a circuit
I was reading the paper "Introduction to quantum electromagnetic circuits", by U. Vool and M. Devoret and I am stuck in the construction of a Lagrangian function for the example LC circuit ...
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What types of power rail are there in an integrated circuit?
I understand that power rails provide the energy required for a circuit to function. Intuition tells me there must be at least two types of rail, one providing power and another taking it away.
But I ...
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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
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How can energy be stored in a magnetic field?
A magnetic field can be thought of a vector field of force on electrons. Basically this can be thought of a some area that attracts or repels electrons.
It is said that inductors are able to "...
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Power and energy of pumped hydro versus grid scale batteries
A company is proposing a pumped hydro system where they state on their website as “capable of producing up to 335 MW of electricity with around 8 hours storage”.
The same company is proposing a ...
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Are two capacitors connected together considered to be parallel or series?
If both ends of two capacitors are connected to each other but in such a way that the positive end of one capacitor is connected to the negative end of another capacitor, do we say that the capacitors ...
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Power and energy calculation of square (or rectangular) wave signals
I have to calculate the power of my square (actually rectangular :D) wave signal, and then the energy of it. I have amplitude, current, duty cycle, and frequency parameters.
For example:
Amplitude: 2....
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Proper burden resistor CT clamp
I'm trying to figure out what the proper burden resistor I should use, but the information I'm reading from OpenEnergyMonitor answer for the proper resistor values doesn't match what I was expecting.
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Energy-delay-product vs. Joule to watt conversion formula
I am currently on my master's doing an assignment, and I am in this point in time extremely confused and I was wondering about this, quite possibly, stupid question. I am just too afraid to ask at ...
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For how long would a 12V 8Ah C20 battery last by heating 100 resistive Kanthal (A1) 20awg 30 cm long wires to 130 ºC in half a second?
Well, I want to heat up 100 wires with 20cm of length each made of Kanthal (A1) with 20 awg gauge (0,8mm/0.03inch diameter and 0.817 ohms/in) to 130 ºC from room temperature of 30 ºC continuously. And ...
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Convert watts (collected at set interval over set time period), into kWh
I have an energy monitor which collects the power usage (W) of a device, every 3.11 seconds. If I want find the total energy consumption (kWh) of the device over a set time period, how would I do it?
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