A uniform wire AB of length 1 m, an unknown resistance X and a resistance of `12 Omega` are connected to a battery and a galvanometer G as shown in the figure. The galvanometer shows no deflection when AJ=60 cm. What is the value of X (in ohm) ?

A thin uniform wire AB of length 1 m , an unknown resistance X and a resistance of 12 Omega are connected by thick conducting strips, as shown in the figure. A battery and a galvanometer (with a sliding jockey connected to it) are also available. Connections are to be made to measure the unknown resistance X . Using the principle of Wheatstone bridge answer the following questions : (a) Are there positive and negative terminals on the galvanometer? (b) Copy the figure in your answer book and show the battery and the galvanometer (with jockey connect at appropriate points. (c) After appropriate connections are made, it is found that no deflection takes place in th, from galvanometer when the sliding jockey touches the wire at a distance of 60 cm from A . Obtain value of the resistance X.

A thin uniform wire AB of length 1 m , an unknown resistance X and a resistance of 12 Omega are connected by thick conducting strips, as shown in the figure. A battery and a galvanometer (with a sliding jockey connected to it) are also available. Connections are to be made to measure the unknown resistance X . Using the principle of Wheatstone bridge answer the following questions : (a) Are there positive and negative terminals on the galvanometer? (b) Copy the figure in your answer book and show the battery and the galvanometer (with jockey connect at appropriate points. (c) After appropriate connections are made, it is found that no deflection takes place in th, from galvanometer when the sliding jockey touches the wire at a distance of 60 cm from A . Obtain value of the resistance X.

A thin uniform wire AB of length 1 m , an unknown resistance X and a resistance of 12 Omega are connected by thick conducting strips, as shown in the figure. A battery and a galvanometer (with a sliding jockey connected to it) are also available. Connections are to be made to measure the unknown resistance X . Using the principle of Wheatstone bridge answer the following questions : (a) Are there positive and negative terminals on the galvanometer? (b) Copy the figure in your answer book and show the battery and the galvanometer (with jockey connect at appropriate points. (c) After appropriate connections are made, it is found that no deflection takes place in th, from galvanometer when the sliding jockey touches the wire at a distance of 60 cm from A . Obtain value of the resistance X.

A thin uniform wire AB of length 1m , an unknown resistance X and a resistance of 12 Omega are connected by thick conducting strips, as shown in the figure. A battery and a galvanometer (with a sliding jockey connected to it) area also available. Connections are to be made to measure the unknown resistance X using the principle of Wheatstone bridge. Answer the following questions. (a) Are there positive and negative terminals on the galvanometer ? (b) Copy the figure in your answer book and show the battery and the galvanometer (with jockey) connected at apalphariate points. ( c) After apalphariate connections are made, it is found that no deflection takes place in the galvanometer when the sliding jockey touches the wire at a distance of 60 cm from A . Obtain the value of the resistance X .

A thin uniform wire Ab of length 1m, an unknown resistance X and a resistance of 12 Omega are connected by thick conducting strips, as shown in the figure. A battery and a galvanometer (with a sliding jockey connected to it) are also available. Connections are to be made to measure the unknown resistance X using the principle of Wheatstone bridge. Answer the following questions. (a) Are there positive and negative terminals on the galvanometer? (b) Copy the figure in your answer book and show the battery and the galvanometer (with jockey) connected at appropriate points.

Figure alongside shows a uniform manganin wire XY of length 100 cm and resistance 9Omega , connected to an accumulator D of emf 4 V and internal resistance 1Omega through a variable resistance R. E is a cell of emf 1.8 V connected to the wire XY via a jockey J and a central zero galvanometer G. It is found that the galvanometer shows no deflection when XJ = 80 cm. Find the value of R.

A secondary cell of emf 2 V and finternal resistance 0.1 Omega is connected to the ends of a uniform wire of length 1 m and resistacne 12 Omega .A primary cell of emf 1.5 V in series with a galvancometer is connected to two points on the wire. If the galvanometer shows no deflection find the distance between the points.