Ohm's Law: Explaining V, I, R, C, and Jt/c2

  • Thread starter Thread starter falcon102
  • Start date Start date
  • Tags Tags
    Law Ohm's law
AI Thread Summary
Ohm's Law is discussed with a focus on the relationships between voltage (V), current (I), resistance (R), and charge (C). The formula V = I * R is established, along with the definitions of current as I = C/T and voltage as V = J/c. The user questions the derived formula R = Jt/c², suggesting that if time (T) increases, resistance (R) also increases. This indicates a misunderstanding, as resistance is not directly dependent on time but rather on the material and geometry of the conductor. Clarification is sought on these concepts and their interrelations.
falcon102
Messages
7
Reaction score
0
Hi
I really have confuse about some formula I did, I'll tell u, it is made by Ohm law ok,

everyone knows V= I*R
the I is current and it I= C\T, C = coulomb Right
and V = J \ c

SO R = V \ I Ohm law

R = Jt\ c2 In this formula the T if it increasing the R will increase too

this is right or no, plase if anyone can explain to me!
 
Engineering news on Phys.org
If the same number of coulombs flow through a resistance in a larger time period, then certainly the resistance is larger.

- Warren
 
Hey guys. I have a question related to electricity and alternating current. Say an alien fictional society developed electricity, and settled on a standard like 73V AC current at 46 Hz. How would appliances be designed, and what impact would the lower frequency and voltage have on transformers, wiring, TVs, computers, LEDs, motors, and heating, assuming the laws of physics and technology are the same as on Earth?
While I was rolling out a shielded cable, a though came to my mind - what happens to the current flow in the cable if there came a short between the wire and the shield in both ends of the cable? For simplicity, lets assume a 1-wire copper wire wrapped in an aluminum shield. The wire and the shield has the same cross section area. There are insulating material between them, and in both ends there is a short between them. My first thought, the total resistance of the cable would be reduced...
I used to be an HVAC technician. One time I had a service call in which there was no power to the thermostat. The thermostat did not have power because the fuse in the air handler was blown. The fuse in the air handler was blown because there was a low voltage short. The rubber coating on one of the thermostat wires was chewed off by a rodent. The exposed metal in the thermostat wire was touching the metal cabinet of the air handler. This was a low voltage short. This low voltage...
Back
Top