Advertisements
Advertisements
प्रश्न
Write a short note on lighting conductors.
Advertisements
उत्तर
Lightening conductor is a device used to safeguard the large buildings against the lightening of the thunderstorm. Normally, they are fitted on the top of tall buildings as a safety device. It consists of few metal spikes fitted to the highest part of the building and connected to thick copper strip which is buried inside the earth.
APPEARS IN
संबंधित प्रश्न
Write true or false for a given statement.
A current-carrying coil, when suspended freely, can rest in any direction.
Answer the following in short.
If a bar magnet is placed over iron filings, where will the attraction of the iron fillings be
- maximum?
- minimum?
Define the following term regarding a bar magnet:
Magnetic equator
Write the answer in your word.
Write the properties of a magnet.
There are two knitting needles. One of them is magnetized. How will you find out which one is magnetized, if no other magnet is available?
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
Name the metal used for E and F.
Distinguish between
Natural and artificial magnets.
An object that is attracted by magnet.
The south pole of a bar magnet and the north pole of a U-shaped magnet will _______.
