Help Me Understand Voltage, Current & Resistor - 4th Year High School Student

  • Thread starter Thread starter xiledreama
  • Start date Start date
AI Thread Summary
If voltage is constant and current increases, resistance must decrease according to Ohm's Law, which states that voltage equals current multiplied by resistance. Understanding this relationship is crucial for grasping basic electrical concepts. When current rises while voltage remains unchanged, it indicates that the resistance in the circuit is lowering. This can be visualized through arrow analysis, which helps clarify how changes in one variable affect the others. Overall, a fundamental grasp of these principles is essential for any student studying electricity.
xiledreama
Messages
2
Reaction score
0
If Voltage is constant and Current (amps) increases then Resistor should be?
increased, decreased or the same...

i do not understand this at all..i don't understand the relationshop between them...could someone please help me? I am in my 4th yr at high school so please...no hard words!
 
Engineering news on Phys.org
look up Ohm's law. That is the relationship between voltage, current and resistance. Solve for R and use arrow analysis to see how resistance should change.
 
xiledreama said:
If Voltage is constant and Current (amps) increases then Resistor should be?
increased, decreased or the same...

Resistance should be decreased. Voltage = Current*Resistance (Ohms Law)
 
Hi all I have some confusion about piezoelectrical sensors combination. If i have three acoustic piezoelectrical sensors (with same receive sensitivity in dB ref V/1uPa) placed at specific distance, these sensors receive acoustic signal from a sound source placed at far field distance (Plane Wave) and from broadside. I receive output of these sensors through individual preamplifiers, add them through hardware like summer circuit adder or in software after digitization and in this way got an...
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 am not an electrical engineering student, but a lowly apprentice electrician. I learn both on the job and also take classes for my apprenticeship. I recently wired my first transformer and I understand that the neutral and ground are bonded together in the transformer or in the service. What I don't understand is, if the neutral is a current carrying conductor, which is then bonded to the ground conductor, why does current only flow back to its source and not on the ground path...
Back
Top