How Does Time Affect Current Flow?

In summary, the conversation discusses the relationship between current, resistance, and heat in an electrical wire. The equation H=I*I*R*t is mentioned, which shows how heat energy is produced by the current flow. The concept of calculating the number of electrons flowing past a point in the wire is also briefly touched upon, with the value of the charge per electron being given as -1.602 * 10^-19 Coulombs.
  • #1
falcon102
7
0
Hi,
I want to ask a qusetion about the electrons, what the time plays with the current flow? what will be happen for example with current 0.5A in the wire with 5 ohm?

thx
 
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  • #2
What do you mean? Please rephrase your question.
 
  • #3
simple.
Heat will be produced, as
H=I*I*R*t
clear?
 
  • #4
You get power dissipation measured in watts. Ohm's law
 
  • #5
simple.
Heat will be produced, as
H=I*I*R*t
clear?

could u explain more
 
  • #6
falcon102 said:
simple.
Heat will be produced, as
H=I*I*R*t
clear?

could u explain more
That equation is meant to show that the heat energy H generated by the current flow is equal to the power P multiplied by time t. Like this:

[tex]H = Power * t = I^2 * R * t[/tex]

Where I is the current and R is the resistance.

But I'm not sure that's what you are trying to ask. You might also be asking how to calculate how many electrons are flowing past a point in the wire, given the current I = 0.5A. If that is your question, you can figure it out from the fact that 1 Amp of current is equal to 1 Coulomb of charge flowing past a point per second. The charge per electron is often written as "e" with the following value:

[tex]e = -1.602 * 10^{-19} Coulombs[/tex]
 

1. How does time impact the flow of electric current?

Time does not directly impact the flow of electric current. Electric current is defined as the rate of flow of electric charge, and time is not a factor in this equation. However, the amount of time an electric current is applied can affect the overall amount of charge that passes through a circuit.

2. Does time affect the speed of electric current?

No, time does not affect the speed of electric current. The speed of electric current, also known as the velocity of the electrons, is determined by the material through which the current is flowing and the applied electric field. Time does not play a role in this process.

3. Can time affect the strength of an electric current?

Yes, the amount of time an electric current is applied can affect the strength of the current. This is because the longer the current is applied, the more charge will pass through the circuit, resulting in a stronger current. However, the strength of the current can also be affected by factors such as the resistance of the circuit and the voltage applied.

4. How does the duration of an electric current affect its effects?

The duration of an electric current can affect its effects in a few ways. Firstly, the longer the current is applied, the greater the amount of charge that will pass through the circuit, resulting in a larger effect. Additionally, the longer the current is applied, the more heat will be generated, which can also have an impact on the overall effect of the current.

5. Can the time at which an electric current is applied affect its effects?

Yes, the time at which an electric current is applied can affect its effects. For example, in certain situations, such as in high-frequency circuits, the timing of the current can be crucial in achieving the desired result. Additionally, the time at which a current is applied can also affect the overall duration of the current, which can in turn impact its effects.

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