0
What term is a measurement of resistance in an electrical circuit?
Wiki User
∙ 12y ago
The technical definition is "Electrical resistance is a ratio of the degree to which an object opposes an electric current through it, measured in ohms." In simplfied terms, electrical resistance is broadly equivalent to friction in a mechanical system. If you applied a voltage to a circuit with zero resistance then you would get an infinite current. In reality all circuits have some resistance which limits the current. We can predict the current in a given circuit using Ohms law: V = I x R Where: V is Voltage (measured in Volts) I is current (measured in Amps) R is resistance (measured in Ohms)
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoResistance :-
Resistance of circuit is opposition offered to flow of current by that circuit.
Causes:
1. it opposes the flow of current
2. it ipposes the voltage
3. it protect the electrical component.
4. it protect from any electrical hazards
Not really, resistance is mostly centralised to one area of the circuit where the lower the resistance the lower the voltage but higher the amps. Resistance can be caused by many things such as a larger piece of wire in place of a thinner piece, or a broken wire replaced by a connector. These increase the resistance because there are things in the way of the current.
Wiki User
∙ 12y agoIt doesn't necessarily have any purpose. It is a natural feature of any circuit, and caused by the length, cross-sectional area, and resistivity of the conducting material. In other words, it exists, whether we want it or not! Ideally, it would be a good thing if resistance didn't exist in supply cables, as it causes a voltage drop along the cable, and is responsible for energy losses.
'Resistors', on the other hand, are circuit components having specific values of resistance, which can be added to a circuit in order to modify the natural resistance of that circuit.
Wiki User
∙ 13y ago- If total voltage and current are known then, Rt = Vt/It will figure total resistance.
- If total power and total voltage are known then Rt = Vt2/Pt will figure total resistance.
- If total power and total current are known then Rt = Pt/It2 will figure total resistance.
- If the total current or voltage and power of all the components in the circuit are known then add all the power values to get Pt, and then you can use either Rt = Vt2/Pt or Rt = Pt/It2 to figure total resistance.
Wiki User
∙ 12y agoThe resistance of a circuit is the total opposition offered to the flow of electric current.
Wiki User
∙ 12y agoThe correct term is Ohm
WIKI Ohms law for a complete explanation.
Wiki User
∙ 13y agoResistors limit current flow.
Add your answer:
Earn +20 pts
What term best describes an electrical circuit in which no current flows from the power source through the control component load and conductors?
A cold circuit
Why voltmeter should have a very high resistance?
well a voltmeter measures AC and DC voltage. resistance is a term used only for DC voltage, A voltmeter uses a term called Impedance for AC, without it, when you measure across two terminals it would create a short circuit and would blow up the meter. it is basically a safety feature to prevent people from creating short circuits when measuring.
what term describes the amount of charge that passes a point in a circuit each second Current Resistance Voltage power?
Current
What is reactance?
The influence of a coil of wire upon an alternating current passing through it, tending to choke or diminish the current, or the similar influence of a condenser; inductive resistance. Reactance is measured in ohms. The reactance of a circuit is equal to the component of the impressed electro-motive force at right angles to the current divided by the current, that is, the component of the impedance due to the self-inductance or capacity of the circuit.
Define the electrical term VA?
'VA', or more correctly, V.A, is not an electrical 'term'. Rather, it is the symbol for 'volt ampere', the unit of measurement for a quantity called 'apparent power'. This is the product of the supply-voltage and load current for an a.c. load.
What is the term for the relationship of voltage current and resistance in simple electrical circuit?
Ohms Law
The ohm is the unit of measurement of quantity of positive electrical charges?
Ohm is a unit of measurement for resistance. The term ohm was named after a German physicist named Georg Simon Ohm.
What does resistance in an electrical circuit mean?
i dont know really, thats why im asking right
What is the function of a build in an electric circuit?
I have never heard of an electrical term "build" in an electrical circuit.
What is the abstract noun for resist?
The abstract noun for the verb resist is the noun resistance (opposition, opposing force). As an electrical term, resistance is a property of the molecules of a substance, or their particular effect in a circuit.
What is the term for the the unit that measures electrical resistance?
ohm
How do you work out the current in a circuit?
we can calculate the current in a commmon electrical circuit by this formulae i.e,I=V\R where i is the current flowing in the conductor, R is resistance , V is the voltage.. THE FORMULA IS CORRECT but the term conductor does not suffice an explanation since a conductor is low in resistance R= resistance not conduction.
What is a term for the relationship of voltage current and resistance in a simple electrical circuit?
Ohm's Law. According to Ohm's law V = iR where V is voltage (usually measured in volts) between two points of the circuit i is current (usually measured in amperes) between two points of the circuit R is resistance (usually measured in Ohms) between two points of the circuit.
What is the term used to designate the point in an electrical circuit where electrical work is done?
the load
What term for the difference in electrical energy between 2 places in a circuit?
Voltage.
What does the term OHM mean?
It is a unit of measurement to measure the resistance an object possesses when electricity flows through it.
What is the term for unit that mesures elctrical restaince?
Ohm is a unit used for measuring electrical resistance.
