The torque vs armature current of a differential compound motor in the strong field is?

• A. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q14a.png"><img alt="The torque vs armature current of differential compound motor in strong field - option a" class="alignnone size-full wp-image-160847" height="206" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q14a.png" width="282"/></a>
• B. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q14b.png"><img alt="The torque vs armature current of differential compound motor in strong field - option b" class="alignnone size-full wp-image-160848" height="238" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q14b.png" width="270"/></a>
• C. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q14c.png"><img alt="The torque vs armature current of differential compound motor in strong field - option c" class="alignnone size-full wp-image-160849" height="225" sizes="(max-width: 285px) 100vw, 285px" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q14c.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q14c.png 285w, https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q14c-100x80.png 100w" width="285"/></a>
• D. <a href="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q13c.png"><img alt="The torque vs armature current of differential compound motor in strong field - option d" class="alignnone size-full wp-image-160846" height="202" src="https://www.sanfoundry.com/wp-content/uploads/2017/05/electrical-machines-questions-answers-operating-characteristics-dc-motor-q13c.png" width="247"/></a>