The open circuit voltage and open circuit core loss variation is?

• A. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-entrance-exams-q2a.png"><img alt="The open circuit voltage &amp; open circuit core loss variation - option a" class="alignnone size-full wp-image-160973" height="174" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-entrance-exams-q2a.png" width="300"/></a>
• B. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-entrance-exams-q2b.png"><img alt="The open circuit voltage &amp; open circuit core loss variation - option b" class="alignnone size-full wp-image-160974" height="189" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-entrance-exams-q2b.png" width="300"/></a>
• C. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-entrance-exams-q2c.png"><img alt="The open circuit voltage &amp; open circuit core loss variation - option c" class="alignnone size-full wp-image-160975" height="186" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-entrance-exams-q2c.png" width="300"/></a>
• D. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-entrance-exams-q2d.png"><img alt="The open circuit voltage &amp; open circuit core loss variation - option d" class="alignnone size-full wp-image-160976" height="174" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-entrance-exams-q2d.png" width="300"/></a>