0
Does resistance make voltage or current higher in an electrical circuit?
Wiki User
∙ 16y ago
ohm's law ..... E = I x R
but the facts are that most of the time the voltage (E) is fixed so I = E / R
so the higher the resistance, the lower the current. http://en.wikipedia.org/wiki/Electrical_resistance A resistance resist the current to flow and makes the current lower in an electrical circuit. The voltage in an electrical circuit is given from the source (battery etc) and will not be higer by adding a resistance, but in the part of the electrical circuit where you put the resistance the voltage could be higer (and it would then be lower other parts)
Wiki User
∙ 16y ago
Wiki User
∙ 12y agoThese terms are all electrical. Ohms law gives the relationship.
It takes one volt (pressure) to push 1 amp (flow) through 1 ohm of resistance.
The equation is V=IR, where V is volts, I is current, and R is resistance.
By substitution, this gives us R=V/I, and I=V/R. By having any two known values, you can find the third unknown.
For more information see the Related Link shown below.
Wiki User
∙ 10y agoFor most metal conductors, the answer is yes... indirectly. An increase in voltage causes an increase in current which, in turn, causes an increase in temperature. An increase in temperature causes an increase in resistivity, which causes an increase in resistance.
This is the reason that Ohm's Law doesn't apply to most conductors!
Add your answer:
Earn +20 pts
What does power divided by speed equal?
Ohm so correctly said: Voltage divided by current equals resistance. Voltage divided by current will tell you the value of a circuit's resistance. But resistance is not affected by either voltage or current. It is determined by the length, cross-sectional area, and resistivity (type of conducting material) of the conductor. Resistivity is, in turn, affected by temperature. So voltage divided by current tells you what the resistance happens to be - changes in voltage or current do not affect resistance.
What gets used up in an electric circuit current or energy?
One of Kierchieff's laws tell us that the more wattage (energy) consumed by an electrical device in a circuit, the larger the voltage difference that exists across the device and the greater the current flowing through it. The energy consumed is directly proportional to the Impedance of the electrical device but is more importantly proportional to the square of the current. WATTS=VOLTS X AMPERES= RESISTANCE (IMPEDANCE) X AMPERES X AMPERES A Circuit with Current but without resistance would exhibit no energy at all.
What is the effect on current through a circuit of steady resistance when the voltage is doubled?
The current will increase and will flow more. If voltage increases, current must increase.
One way to make current is to use a what?
You can apply a potential difference across a wire to cause a current to flow through. Ohm's Law allows you to calculate the amount of current based on the voltage supplied and the resistance of the circuit. I = current V = voltage or potential difference R = resistance I = V/R
Does a large current in a circuit make a bulb bright or dim?
The glow of the bulb is due to heating of the filament to the incandescent level. Joule's heating effect gives the formula H = I2 R t. Hence more the current then more the heat and so more brightness. Thus large current makes the bulb brighter no doubt. At the same time if current exceeds the nominal level then filament would get melted and get fused.
What is the relationship among voltage circuit and resistance in a circuit?
Voltage = (current) x (resistance) Current = (voltage)/(resistance) Resistance = (voltage)/(current)
How do you figure out how much current is in an electrical wire?
If you know the voltage and resistance, then current = voltage divided by resistance. Otherwise, you can attach an ammeter into the circuit (in series).
What is a relationship among voltage current and resistance in a circuit?
Voltage = (current) x (resistance) Current = (voltage)/(resistance) Resistance = (voltage)/(current)
What is the relationship among voltage current and resistance in a circuit?
Voltage = (current) x (resistance) Current = (voltage)/(resistance) Resistance = (voltage)/(current)
What increases when the resistance of an electrical circuit decreases?
Current increases if the voltage remains constant.
What is the term for the relationship of voltage current and resistance in simple electrical circuit?
Ohms Law
What instrument measures electrical earth resistance?
A multimeter device can measure resistance, current, AC/DC voltage, and it also can determine continuity on an electrical circuit, and its range for current, voltage and resistance is widely variable.
What is an equation for power?
Power = (energy used)/(time to use it)Power dissipated by an electrical circuit =(voltage across the circuit) x (current through the circuit)or(resistance of the circuit) x (square of the current through the circuit)or(square of the voltage across the circuit)/(resistance of the circuit)
What will happen in a circuit if the voltage does not change but the resistance in the circuit increases?
If the resistance increases, while the voltage stays the same, current will decrease. Current = voltage divided by resistance
If the resistance in a circuit is doubled while the voltage remains the constant the current is?
It is halved. coz voltage=current * resistance
What does resistance in an electrical circuit mean?
i dont know really, thats why im asking right
What happen to current in a circuit if the voltage in not charged but the resistant is double?
In an electrical circuit, if resistance is doubled, EMF (measured in volts) stays constant, and current is halved.
