Did Jesus Feel Powerless During His Trial?

According to Joseph Ratzinger (Pope Benedict), yes. 

"In Christ, God entered the world and set up the criterion of truth in the midst of history. Truth is outwardly powerless in the world, just as Christ is powerless by the world's standards: he has no legions; he is crucified. Yet in his powerlessness, he is powerful, only thus, again and again, does truth become power."
Jesus of Nazareth: Holy Week: From the Entrance into Jerusalem to the Resurrection.

Ratzinger is not saying that Jesus appeared powerless. He is saying that truth is essentially powerless in the world as Jesus was at the trial. The qualifiers--in this world/ by the world's standards-- don't make a difference.
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The problem with this is:

Matthew 26:52-53 "Then Jesus said to him, “Put your sword back into its sheath, for all who take the sword will perish by the sword. Do you think that I cannot call upon my Father and he will not provide me at this moment with more than twelve legions of angels?"

John 19:10-11 "So Pilate said to him, “Do you not speak to me? Do you not know that I have power to release you and I have power to crucify you?” Jesus answered [him], “You would have no power over me if it had not been given to you from above. For this reason the one who handed me over to you has the greater sin.”"

Jesus was keenly aware of his power and thus of the need to restrain himself and submit wholly to what as necessary.