0 votes 0 votes For a specified input voltage and frequency, if the equivalent radius of the core of a transformer is reduced by half, the factor by which the number of turns in the primary should change to maintain the same no load current is $1/4$ $1/2$ $2$ $4$ Electrical Machines gate2014-ee-1 transformation-ratio core-losses + – makhdoom ghaya asked Feb 11, 2017 • edited Nov 21, 2019 by Lakshman Bhaiya makhdoom ghaya 9.4k points answer comment Share See all 0 reply Please log in or register to add a comment.