The flow of current in an electric circuit is controlled by:
When an iron nail or rod is placed in a current carrying coil, it becomes a magnet, this is known as ________.
A freely suspended bar magnet always stays along:
The Earth behaves like a huge ________.
Which one is true statement?
Current can easily pass through:
There are ________ types of a magnet.
How many poles are there of a ring-shaped magnet?
Magnet made by steel is ________.
Magnet made by iron is ________.
________ is used to find the direction at any place.