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| 1. |
We have a very sensitive electronic instrument and we want to protect it from external electric fields. How ? |
| Answer» Solution :We can surround that INSTRUMENT with a conducting box or we can keept that inside the cavity of a conductor. By doing so the charge on the box or conductor with cavity distributes such that NET ELECTRIC field inside the box or cavity is zero.In this WAY instrument can be protected from the external fields. Do you know? This is called shielding. | |