A current can heat …
It can have a chemical action when passing through …
Current can produce a … effect.
We can measure currents by … their heating, chemical or magnetic effects.
The practical unit of current is called...
Two things are necessary to cause an electric current to flow: a complete circuit, and the second - …
A battery has a surplus of electrons on one …
What are the most common sources of electromotive force?
The practical unit of the electromotive force is …
The insulators are substances which have a high …
The practical unit of resistance is …
Substances which are not insulators …
Створюйте онлайн-тести
для контролю знань і залучення учнів
до активної роботи у класі та вдома