If current direction reverses, does the magnetic field remain, reverse, strengthen automatically or vanish?
رو پلٹے تو میدان کی سمت قائم، پلٹ، لازماً قوی یا ختم ہے؟
Solution & explanation
Its direction reverses; equal current magnitude gives the same field magnitude in the same geometry.
Independent study answer. Original textbook ↗ · English-medium printed page 136.