Which one of the following is an insulator?
Wood
Wood is an insulator, which means it does not conduct electricity. Copper, mercury, and aluminium are conductors of electricity.
What is the unit of specific resistance?
'Net metering' is sometimes seen in the news in the context of promoting the
Which of the following household items does NOT use the heating effect of current?
The magnetic field produced by a current-carrying wire at a given point depends on which of the following factors?
If the resistance of a conductor is increased to three times, then the current will be: (voltage V remains constant)