The question can't really be answered without some form of limitation on what would be considered a "wire". A nylon rope, for example, has extremely high resistance, but most people wouldn't call it a wire.
The electrical resistance of a material is proportional to its length, and inversely proportion to its cross-section. So a long thin copper wire would have the greater resistance.
A wire that is 2 m long and has a cross-sectional area of 0.066 cm^2
location of the wire
size of the wire
voltage through the wire
knots in the wire
All insulators have high resistance. Ceramics, plastic, rubber, glass are some examples.
Whichever has the lowest cross-sectional area.
The resistance of thin wire is greater than that of thicker wire of the same length.since they have the same length,it implies they have the same resistivity.also R=(RESISTIVITY*LENGTH/AREA)
a hot wire has more resistance then a cold wire.
The smaller the wire, the more resistance.
U didn't clearify resistance in what aspect. If u mean electrical resistance,Resistance is phenomenum which describes the limitation of the flow of electric current in an electrical circuit. According to Ohms law (V=IR),the value of resistance is directly proportional to the value of voltage and inversely proportional to the value of current.That is,as the value of resustance increased,voltage also increases;also if the valur of resistance increases,the current reduces(as in I=V/R)
It checks resistance from a circuit or an electrical component to earth, to make sure it is electrically isolated. This must be a very high value of resistance, hence 'megohms'.
Power in a circuit is inversely proportional to the resistance, all other things being equal. Voltage equals amperes time resistances, so amperes equals voltage divided by resistance. Watts equals voltage times amperes, so watts equals voltage squared divided by resistance.
Electrical resistance is measure in Ohms. A function of voltage divided by current. It is also dependant on the length and cross sectional area of the conductor.
what is the diference betwean calculated and maesured value
gold
The factors that determine resistance are thickness, length, temperature, and the conductivity of the resistance of an object
U didn't clearify resistance in what aspect. If u mean electrical resistance,Resistance is phenomenum which describes the limitation of the flow of electric current in an electrical circuit. According to Ohms law (V=IR),the value of resistance is directly proportional to the value of voltage and inversely proportional to the value of current.That is,as the value of resustance increased,voltage also increases;also if the valur of resistance increases,the current reduces(as in I=V/R)
Electrical resistance is measure in Ohms. A function of voltage divided by current. It is also dependant on the length and cross sectional area of the conductor.
The change in electrical resistance produced in a current carrying conductor or semiconductor on application of magnetic field H.
Ways to reduce electrical resistance: increase the diameter of the conductor, decrease or increase the temperature of conductor (depending on its thermal characteristics), decrease the length of the conductor. A change in the material out of which the conductor is made can decrease resistance, too. And there is the phenomenon of superconductivity. In a simple circuit the resistance can be lowered by adding resistors in parallel. The total circuit resistance will then decrease. You can also reduce resistance by substituting resistors of lower value, or by adjusting a potentiometer, or pot, to a lower value.
The use of a resistance box or a "Decade Box" is to help calibrate instruments used to measure electrical values such as Voltage, Current, and Resistance. Without them you would not have a known value of resistance to use as a set point.
form factor is defined as ratio between rms value and average value..
It checks resistance from a circuit or an electrical component to earth, to make sure it is electrically isolated. This must be a very high value of resistance, hence 'megohms'.
In the National Electric Code Book or in an Ugly's Electrical Reference book.
Power in a circuit is inversely proportional to the resistance, all other things being equal. Voltage equals amperes time resistances, so amperes equals voltage divided by resistance. Watts equals voltage times amperes, so watts equals voltage squared divided by resistance.
The new resistance will draw an additional branch current, resulting in an increase in the supply current. Another way of looking at it is, when you add additional resistance, the overall resistance will reduce, increasing the value of the supply current.