# How to calculate resistance of wire What is the Resistance? Formula and Use of Resistors in Electrical Circuit

May 26,  · How do I calculate the unknown resistance of wire, given 1 ohm as a fixed resistance, using a meter bridge? Community Answer. By using a meter bridge circuit. The known standard resistor of 1 ohm will be connected on the left hand gap of the meter bridge, and the unknown resistance will be connected on the right hand gap of the meter bridge. Resistivity and Conductivity. The electrical resistance of a wire would be expected to be greater for a longer wire, less for a wire of larger cross sectional area, and would be expected to depend upon the material out of which the wire is made. Experimentally, the dependence upon these properties is a straightforward one for a wide range of conditions, and the resistance of a wire can be.

When you study electrical devices or components, you should know the basics information about common electrical components. One of the common components in electrical is Resistors. And its value is calculated in Resistance. In an electrical and electronic circuit, the resistance is shown by the given symbol. The schematic diagram of an electrical circuit which consists of resistance R with a connected voltage source.

For Example, if the one amp current passes through the circuit which having voltage one volt, the resistance is calculated as one ohm. We can conclude that, the resistance always inversely proportional to electric current. So, high resistance provides the low current in the circuit and vice-versa. And insulators usually have more resistance and good conductors have low resistance.

The resistance is measured in Ohmmeter or Digital Multimeter. Basically, the resistance of the conductor depends on some important factors rsistance as length l of the conductor, the nature of materials, cross-section area of the conductor and temperature of the conductor. You can calculate the value of specific resistance resistznce resistivity by using the online calculator tool. The resistor is a passive component as it can not operate without energy voltage supply or source.

These components of substance are used to reduce the flowing electric current, control the circuit. It also maintains the voltage level or divide voltage in the circuit, adjusts the signal level.

If you look at the resistor image, there are 4 color bands pained on it. The colour code of resistor depends on the resistance rating. If you want to know the value of the resistor, you can calculate the value of resistance by using colour band. We can use these color bands to calculate the value of the resistor. You can buy different rating of resistor as per your requirement. A what is an lng train type resistande resistor has a specific value or constant value.

The carbon film, metal film, metal oxide film, carbon composition, wire wound, etc. The variable type of resistor works as per the name of the resistor.

The variable resistor consists of different value which can how to calculate resistance of wire changed through a dial, knob, and screw or callculate by a proper method. Potentiometer, Rheostat, Photoresistor, Thermistor, Trimmers are the best example of the variable types of resistors.

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Nov 25,  · Compute the total resistance of the circuit. Resistors are not as effective in a parallel circuit, because they only block the current going along one wire. In fact, the more wires there are, the easier it is for the current to find a way through. To find the total resistance, solve for R total in this equation: 1 / R total = 1 / R 1 + 1 / R 2. Jun 09,  · You can calculate the value of resistance by using an online resistance calculator. The value of resistance is calculating by using a basic formula. Basically, the resistance of the conductor depends on some important factors such as length (l) of the conductor, the nature of materials, cross-section area of the conductor and temperature of the. The electrical resistance of an electrical conductor is a measure of the difficulty of passing an electric current through a substance. It explains the relationship between voltage (amount of electrical pressure) and the current (flow of electricity). With more resistance in a circuit, less electricity will flow through the circuit. The inverse of resistance is conductance, a measure not much.

The electrical resistance of an electrical conductor is a measure of the difficulty of passing an electric current through a substance. It explains the relationship between voltage amount of electrical pressure and the current flow of electricity. With more resistance in a circuit, less electricity will flow through the circuit. The inverse of resistance is conductance, a measure not much used. All objects have some resistance, except superconductors. Resistance, discovered by Georg Simon Ohm in , is the ratio between voltage and current.

Ohm's law said that the voltage between any two points in a conductor changes directly as the current between the two points, given the temperature remains the same. He described it with the equation:. A long and thin wire has more resistance than a short and thick one. A simple analogy is a road - the more lanes there are, the more cars can go through. The resistance R of a wire with a constant width, therefore, can be calculated as:.

Resistors are used in electrical circuits to provide electrical resistance. From Simple English Wikipedia, the free encyclopedia. Electrical Network. Covariant formulation. This short article about technology can be made longer. You can help Wikipedia by adding to it. Categories : Physics navigational boxes Electronics Electricity. Hidden category: Technology stubs. Namespaces Page Talk. Views Read Change Change source View history.

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