Sensitivity of meter bridge
WebExplain. Medium Solution Verified by Toppr The metre bridge is most sensitive when the four resistance forming the Wheatstone's bridge are equal. This is possible only if the balance point is somewhere near the middle of the wire. Solve any question of Current Electricity with:- Patterns of problems > Was this answer helpful? 0 0 Similar questions WebAnswer-3: A Carey-fosters bridge is a modified version of the meter bridge (Wheatstone bridge or potentiometer). 1. It can be used to find out the average resistance per unit length of the meter bridge wire and hence find out the unknown resistance. 2. It is more accurate and more sensitive than a meter bridge. Question-4.
Sensitivity of meter bridge
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WebOct 5, 2024 · Sensitivity of meter bridge and Wheatstone bridge explained by RKH SIR - YouTube AboutPressCopyrightContact usCreatorsAdvertiseDevelopersTermsPrivacyPolicy & SafetyHow … WebExplanation: The sensitivity of the meter bridge increases when the current value in the galvanometer is high. This is achieved by reducing the resistor values that are used in the …
WebThat's the beauty of using a Wheatstone's bridge. Because we know the ratio of lengths of the two wires ( and with it the ratio of their resistances, R/R'= L/L' ) we also know the resistance of one of the other resistors, we can, with some maths ( R : Known resistance :: Rwire : Rwire' ) find out the resistance of the object (a banana in this ... WebNull detectors for AC bridges may be sensitive electromechanical meter movements, oscilloscopes (CRT’s), headphones (amplified or unamplified), or any other device capable …
WebThe sensitivity of Carey Foster's bridge is proportional to the length of wire used in the bridge. It uses the same fundamental principle as the Wheatstone bridge, it is balanced when the two pairs of resistances connected to the galvanometer have the same ratio. It is most sensitive when all resistances are of the same order. WebOct 25, 2024 · Sensitivity of the Wheatstone Bridge In the case of measuring instruments, the crucial aspect to be considered is the device sensitivity factor. The device that shows more sensitivity seems to have high reliability and delivers accurate results.
WebNov 4, 2024 · The sensitivity of the balance-detecting center-zero metre is governed by resistor R3, which is a standardized 10-kilohm adjustable potentiometer. Bridge current is limited to a few milliamperes by the value of the resistor RL.
WebJan 25, 2024 · The sensitivity of the meter bridge is at the peak when all resistors have the same order. It can be increased by making sure that the current in the galvanometer is … bus transport company profile pdfWebQues. State whether it is true or false: The sensitivity of the meter bridge is at the peak when all resistors have the same order. (2 marks) Ques. The four arms of a Wheatstone … bus transportation new york cityWebMay 27, 2024 · The galvanometer is less sensitive leading to inaccuracy. Self-heating changes the value of resistance, leading to errors. ... Meter Bridge. A meter bridge also termed a slide wire bridge is an instrument that works on the principle of a Wheatstone bridge. A meter bridge is used in finding the unknown resistance of a conductor as that of … cclive for macWebFeb 17, 2015 · A.When the four resistances P,Q,R,S in the four arms of the Wheatstone bridge are such that there is no deflection in the galvanometer, we have: P/Q=R/S Q.When is Carey Foster Bridge most sensitive? A.It is most sensitive when P,Q,R,S are same or of the same order. Q.Why the resistance for inner ratio arms be equal? bus transportation to ravens gamesWebA meter bridge is basically a wheatstone bridge. Wheatstone Bridge is most sensitive when the bridge is balanced, the resistances which are present in the wheatstone bridge, i.e all … bus transport companies in saudi arabiaWebDec 10, 2024 · Sensitivity of the meter bridge means it can compare very small electromotive force (emf) of the cell. This is possible if we move the jokey by very small distance then it will provide sufficient deflection so we can get exact null point. Now if we move rheostat head from minimum resistance to maximum resistance the net resistance … bus transport in glasgowWebA Wheatstone bridge is an electrical circuit used to measure an unknown electrical resistance by balancing two legs of a bridge circuit, one leg of which includes the unknown component.The primary benefit of the circuit … bus trap calgary