The electrical wire is swaying in the wind.

The river water is flowing quietly.

A large amount of electric current is flowing through this power line.

He read a mass of books.

He read a large amount of books.

This old science book explains the concept of circular current in detail.

He misread the word 'denden'.

We need to measure the strength of this electric current.

I measured the current using an ammeter.

This device operates using a circular current.