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What is electricity current potential difference and resistance?
ShaunMarshgp7659
- Voltage is the electrical pressure in a circuit
- Amperes (amps) are the measure of electrical current in a circuit
- Ohms are the measurements of resistance in a circuit
- Current is essentially how fast electrons are moving in a circuit
- Resistance is what impedes the electrical current, and can be found in the wire or various loads in a circuit
Hope this helps!
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoFor a fixed resistance, if voltage goes up, current goes down, and vice versa.
For a fixed voltage, if resistance goes up, current goes down, and vice versa.
"Resistance" is the resistance to current flow. If there is more of it, there is less current flow. If there is less, more current flow.
These can be proven for any arbitrary values using Ohm's Law, as in:
Voltage=Current x Resistance
Current=Voltage / Resistance
Resistance=Voltage / Current
Wiki User
∙ 10y agoThe ratio of voltage to current is called resistance. From the definition of the ohm (the unit of resistance), R = U/I
where: R = resistance in ohms, U = potential difference (voltage) in volts, and I = current in amperes.
This equation is often referred to as representing 'Ohm's Law' but, actually, this is quite incorrect, as the equation applies whether the load obeys Ohm's Law or not.
Wiki User
∙ 8y agoCurrent:
It is the flow of electrons from lower potential to higher potential.
Potential Difference:
The difference between the potential of positive and negative ions of current is called P.D (at homes it is commonly 110-220)
Resistance:
The stooping power of the medium through which Current flow is called Resistance It changes from medium to medium.
Electricity:
Electricity a form of energy resulting from the existence of charged particles (such as electrons or protons), either statically as an accumulation of charge or dynamically as a current.
Wiki User
∙ 10y agoOhm's law describes the relationship between voltage, current, and resistance. The equation is as follows:
V = IR.
V = voltage
I = current
R = resistance
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What is the potential difference across a 1500 ohm resistor carrying a current of 0.075 A?
Potential Difference across a resistor is given by, Potential Difference = Resistance * Current = 1500 * 0.075 = 112.5 Volts
When the current traveling through a resistor is increased what happens to the voltage that travels through the same resistor?
Your question reveals fundamental misunderstandings about the nature of electricity.'Voltage' is simply another word for 'potential difference', and a potential difference appears across opposite ends of the resistor; it doesn't 'travel through' that resistor! Current, on the other hand, DOES 'travel through' the resistor and is caused by the potential difference across the resistor.Resistance is the ratio of potential difference to current. So if the resistance remians unchanged when the current through it doubles, then it has happened because the potential difference has doubled.
8 If the resistance of an electric circuit is 12 ohms and the voltage in the circuit is 60 V the current flowing through the circuit is?
There is a simple equation relating voltage (properly potential difference), current and resistance: V=IR Where V=potential difference, I=current and R=resistance So to answer: I=60/12 I=5
When the potential is high the current passing through a conductor it is also high true or false?
I think you mean when the 'potential difference' is high, is the current also high? The answer is that it depends on the impedance (a.c.) or resistance (d.c.) of the circuit. If this remains constant, then raising the potential difference will cause the current to increase too.
What is the potential difference neede to send 2a through a 5 ohms resistor?
V=I*R -- Potential (Voltage, V) = Current (Amperage, I) * Resistance (Ohms)2A*5Ohms = 10V
How can you determine the resistance of a current?
Voltage = Current x Resistance giving us Current = Voltage / Resistance i.e. Voltage divided by resistance
What are the four main concepts of electricity?
The four main or basic concepts of electricity include current, power, and potential difference, which is the Voltage. The fourth main concept of electricity is resistance.
Current is proportional to the potential difference and inversely proportional to its?
Current is proportional to the potential difference and inversely proportional to resistance. Ohm's law: Current equals voltage divided by resistance
Does potential difference change with change in resistance?
Changing the potential difference in a circuit does not change the resistance. Rather, it changes the current.
Why does electricity take the shortest path?
because resistance is proportional to the wire's length's . electricity moves from a higher potential to a lower one. Potential = current intensity x resistance, thus potential increases when resistance does. eventually electricity will not choose the longer path because it has a higher potential.
How is electrical resistance calculated?
Resistance (Ohms) = Potential Difference (Voltage) / Current (Amps)
How does resistance after current?
Assuming you are asking "How does resistance altercurrent?", then the answer is that, for a given value of potential difference, the current is inversely-proportional to the resistance. E.g. doubling the resistance will reduce the current by half.
What conditions are necessary for a current to be present in a circuit?
some resistance and potential difference
Calculate the resistance when current 0.24 and potential difference 4.0 A?
I don't no
What does the slope of a graph potential difference vs current represent?
resistance of a material
The ratio of the potential difference across a metallic conductor to the current in the conductor is known as?
That is the resistance, measured in ohms.
What is the ohm?
The Ohm is a unit of measure of resistance to the flow of electricity. The ohm is defined as a resistance between two points of a conductor when a constant potential difference of 1 volt, applied to these points, produces in the conductor a current of 1 ampere.
