Q-1: When we apply current in circular ring clockwise direction than what pole of bar magnet it should represent or what happens in vice versa. Q-2: Can we used copper as dielectric material at W or V bands.                                              Hello, my dear friend, 's I will come back with this Electromagnetics  subject  questions please give your answer according to your knowledge. if you have doubts then join with me in my WhatsApp group link is below. https://chat.whatsapp.com/BVQAI00KNS91piwNhBfYqK