What are the shortcomings of a Daniel cell and how to overcome them

Shortcoming:-After some time cell stops working because + electrolyte becomes more + and - ve electrolyte become more -ve with time.So there is difficulty in flowing of current.So it stops working after some time.

This Problem can be solved by using a u shaped tube salt bridge.Salt bridge completes the circuit and will maintain liquid liquid junction potential.And now there will be countinuous flow of e- or current.

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

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