A meter bridge works on the principle ofWheatstone's network and is known as Wheatstone'smeterbridge. The length of the wire used is onemeter, so it is calledmeterbridge..
Similarly one may ask, why is Wheatstone bridge called so?
Wheatstone bridge is an electric circuit and asthe name suggests, it is in a shape of a bridge, thebridge is a galvanometer. It is named after Sir CharlesWheatstone who has popularized this. Wheatstonebridge helps in finding the unknown resistance value of aresistor. This bridge is also called post officebox.
One may also ask, what is meter bridge definition? Meter bridge is a wheatstone bridge inwhich one lateral pair of resistances is replaced by a straightwire of length 1m of uniform cross section. And other pair consistof one known and one unknown resistance.
In this manner, what is the use of Metre bridge?
The meter bridge uses the same principle as theWheatstone Bridge. It is used to find the unknownResistance of the Material. The meter bridge consists of awire of 100 cm, a scale, one unknown Resistor, one known Resistoror a Resistance Box, a Galvanometer and a jockey.
Which material is used for the meter bridge wire and why?
The material of wire used in meterbridge is made of manganin or eureka due to there high specificresistance or resistivity. Thick copper strips are used inmeter bridge because copper is a good conductor ofelectricity.
Related Question Answers
What is Ohm's law used for?
Ohm's Law is a formula used to calculatethe relationship between voltage, current and resistance in anelectrical circuit. To students of electronics, Ohm's Law (E= IR) is as fundamentally important as Einstein's Relativityequation (E = mc²) is to physicists.What is DC bridge?
Definition of DC Bridge The DC Bridge is used for measuring the unknownelectrical resistance. This can be done by balancing the two legsof the bridge circuit. The value of one of the arm is knownwhile the other of them is unknown.What is bridge sensitivity?
Bridge sensitivity is defined as. Explanation:The bridge sensitivity is defined as the amount ofdeflection of the galvanometer per unit fractional change in theunknown resistance.What is Bridge physics?
A bridge circuit is one kind of electricalcircuit wherein the two branches of the circuit are linked to athird branch –which is connected in between the first twobranches at some middle point along them. A bridge circuitis mainly used to measure resistance.What do you mean by shunt?
In electronics, a shunt is a device which createsa low-resistance path for electric current, to allow it to passaround another point in the circuit. The origin of the term is inthe verb 'to shunt' meaning to turn away or follow adifferent path.Why Wheatstone bridge is more accurate?
(i) The Wheatstone bridge method is moreaccurate than the other methods of measuring resistancesbecause it uses null method. Hence the internal resistance of thecell and resistance of galvanometer do not affect the nullpoint.What is a bridge?
A bridge is a custom-made replacement tooth orteeth that fill the space where one or more teeth are missing. Thebridge restores your bite and helps keep the natural shapeof your face.What is bridge balance condition?
The bridge is in balance condition when nocurrent flows through the coil or the potential difference acrossthe galvanometer is zero. This condition occurs when thepotential difference across the a to b and a to d are equal, andthe potential differences across the b to c and c to d remainsame.What is null point in Metre bridge?
In a meter bridge experiment null point isfound at a distance of 33.7from one end .If a 12 ohm resistor isconnected in parallel with unknown resistance 10 null pointis shift to 51.9 .How does a meter bridge work?
As the area of cross section of the standard wire isconstant, its resistance is proportional to its length. WheatstoneBridge and Meter Bridge circuits are completelysimilar. Thus we find the resistance of an unknown resistor usingthe principle of Wheatstone bridge in a meter bridgecircuit.Who discovered meter bridge?
The Wheatstone bridge was invented bySamuel Hunter Christie in 1833 and improved and popularized by SirCharles Wheatstone in 1843.What is null point in galvanometer?
The device is called a bridge because thegalvanometer forms a bridge between two branches. A varietyof bridge devices are used to make null measurements incircuits. This equation is used to calculate the unknown resistancewhen current through the galvanometer is zero.What is a resistance box?
Definition: The box which contains the resistorsof different values for estimating and comparing theresistance is known as the resistance box. Theaccuracy of the resistance box is very high. The mainadvantage of the resistance box is that the variableresistances are available at one point.What is the principle of potentiometer?
The principle of the potentiometer isthat: For a wire having uniform area of cross section and uniformcomposition,the potential drop is directly proportional to thelength of wire. The above principle is valid whenpotentiometer is used in comparing the EMF of twocells.What is the working principle of Metre bridge?
What is the principle of a meter bridge? AMeter Bridge is also called as slide wire bridge andis an instrument that works on the principle of a Wheatstonebridge. A meter bridge is used to find the unknownresistance of a conductor as that of in a Wheatstonebridge.Why thick copper wire is used in meter bridge?
a) The resistivity of copper wire is very low.The connections between the resistors are made of thickwires so as to increase the rate of cross-section. b) Balancepoint is obtained in the middle of the meter bridge wire soas to increase the sensitivity of the meterbridge.Which wire is used in potentiometer?
The alloys constantan and manganin are traditionallyused for the coils in resistance boxes, for rheostats andfor the wires in potentiometers and metre bridges inthe laboratory. They have high resistivity and low temperaturecoefficient of resistance, both of which make them suitable for thepurpose.What is the use of jockey in meter bridge?
The jockey is used to slide on thebridge wire. It is a metal rod with one end as knife edge.Now adjust the value of resistance in the resistance box and slidethe jockey along the wire. This process is to be done untilthe galvanometer shows a zero or null deflection. 
