On the European front the most important development of the past year has been without question the crushing counteroffensive on the part of the great armies of Russia against the powerful German army. What is the most likely intended effect of the language crushing counteroffensive and powerful in this text? To encourage Americans to believe they were making real progress. To encourage young men and women to enlist in the cause. To prevent Americans from viewing the Russian army as a threat. To suggest America should invest more in its military defense

To encourage Americans to believe they were making real progress

Explanation:

From the sentence given, "...the crushing counteroffensive on the part of the great armies of Russia against the powerful German army.", the most likely intended effect of "crushing counteroffensive" and "powerful" is meant to encourage Americans to believe they were making real progress.

This is because, the term used shows that there is progress being made against a powerful foe.

the direction of the magnetic field produced by an electric current will change when the direction of the electric current changes. for example : if a current is flowing in a straight length of wire, the magnetic field is described by a concentric circle (using right-hand rule).