Q3 of 805 Page 1

Name the electromagnetic waves that are widely used as a diagnostic tool in medicine.

OR


Name the current which can flow even in the absence of electric charge.

The electromagnetic waves that are widely used as a diagnostic tool in medicine are X-Rays because it penetrates much into the muscle layers and is used to obtain images of bones which are not much penetrated by these rays.


OR


The current which can flow even in the absence of electric charge is the Displacement current because it flows in a region where there is a time varying electric field. It can be seen by the Ampere-Maxwell’s law which is,



Where,



Is the displacement current.


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