xmlns="http://www.w3.org/2000/svg" viewBox="0 0 576 512"> Subscribe on YouTube
href="https://exam.pscnotes.com/mcq/which-of-the-following-can-have-negative-temperature-coefficient/#more-44028">Detailed SolutionWhich of the following can have negative temperature coefficient?
48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube resistance is around" class="read-more button" href="https://exam.pscnotes.com/mcq/the-resistance-of-a-copper-wire-200-m-long-is-21-omega-if-its-thickness-diameter-is-0-44-mm-its-specific-resistance-is-around/#more-43848">Detailed SolutionThe resistance of a copper wire 200 m long is 21 $$\Omega .$$ If its thickness (diameter) is 0.44 mm, its specific resistance is around
of the current." class="read-more button" href="https://exam.pscnotes.com/mcq/whether-circuit-may-be-ac-or-d-c-one-following-is-most-effective-in-reducing-the-magnitude-of-the-current/#more-43789">Detailed SolutionWhether circuit may be AC. or D.C. one, following is most effective in reducing the magnitude of the current.