Questions tagged [electric-circuits]
An electronic system, with closed loop current flow, and relative electrical potentials present across electrical components.
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Why in a RC circuit is the resistance multiplied by the capacitance equal to the time constant (inverse of the exponential growth rate)
The first three sections of this question ("Background", "Terms", and "Description of a capacitor’s charge over time in a direct current RC circuit") builds up the ...
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Can u explain the line, " A voltage source likes open circuit load and hates short circuit load."
Can u explain the line, " A voltage source likes open circuit load and hates short circuit load." In my textbook it just says 'for obvious reasons'
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Current flows without any potential difference [duplicate]
why current if flowing if there is no potential difference. if no potential difference then no work is being done on charge so there should be no net displacement of charge but we know that the ...
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Can we say $i=i_{0}\lvert\sin(\omega t+ \phi) \rvert$ is alternating current?
$$i=i_{0}\lvert\sin(\omega t+ \phi) \rvert$$
$i_{0}>0$. Can we say that the current described by the above equation is an alternating current?
$$i=i_{0}\sin(\omega t+ \phi)$$ We are mostly ...
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Dependent and Independent Variables in an Electrical Experiment [closed]
So, for my science fair I had to test the gauge of a copper wire vs electrical resistance. What I did was I set up a series circuit involving a 6v battery, a light bulb, a multimeter, and a voltmeter. ...
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How electricity works acutally?
I've been told that electricity is due to flow of charges(-ve charge=electron) that are provided by the battery. And no. of charges that leave battery at one end are equal to no. of charges that re-...
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What holds good? [closed]
If the 1 ohm resistor is replaced by a 0.2 ohm resistor. what will be the current flowing through ?
What actually determines it ? the OHM'S LAW or POWER CONSERVATION ?
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Doubt on resistor circuit [closed]
How are we able to flip the triangular resistor to the opposite breaking its connection with the lower 2r resistor?
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Constant Voltage In a parallel circuit
We know that in a parallel circuit the voltage in each resistor is the same, but that doesn't make sense at all, I mean lets consider a circuit with a parallel resistance r1 and r2. V = IR is applied ...
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Current through resistors crossing each other [closed]
Calculate the current shown by the ammeter A in the given circuit. I've searched the internet but didn't know how to search for it. Please help
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What happens (from the first principle perspective) when you connect 2 negative terminals in a DC Circuit? [closed]
E is the electromotive force, r is the internal resistance.
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Question about circuit with two cells [closed]
Edited - could someone explain how you treat a circuit with two cells in respect to circuit laws and also whether the section in the middle is in parallel or in series.
Second Edit: I’ve researched ...
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Electric appliances - electron vs proton currents
So lets get back to the basics in electricity.
As everyone knows, electric current is just a flow of charged particles, so there is nothing special about it.
But what about the type of particles and ...
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Electric Field Topology in a Wire - Exact Duplicate [closed]
1. How is the electric field set up in a wire by a battery so that we can assume that potential at a node is constant?
2. What happens to the electric field across a resistance which makes voltage '...
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Connecting two batteries in a circuit [closed]
I have 3 batteries, 2- 1.5 V batteries, and a 9V battery. I need 12V to run a DC motor connected on the circuit. Hoh should I connect the batteries? In series or in parallel?
