Question

Describe an experiment to compare the conductivity of heat.​

Answer 1

Answer:

Take a set of rods such that each is made of a different metal. The rods must be coated with wax. This can be done by one of the following methods:

Take the rods and lay them in a chilled tin tray containing molten paraffin-wax. Remove quickly, hold vertically to allow the excess wax to drain off and set them aside.

Paint each rod with a paintbrush dipped in very hot molten wax. This produces an uneven, thick coating of wax, which must then be thinned by blowing a Bunsen flame up and down the rod. (This is a poor method, only successful in very skilful hands).

Fill the water bath with hot water. Dip all the rods together keeping space between them. Note how far along the rods the wax has melted when the setup reaches a steady state.

Answer 2

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Experiment

take a bulb and on it for 24 hours or 1 day then see and touch the bulb it is hot by the heat like this a chapati also bake

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