For higher diverter resistance, speed-torque characteristic will lie ____________(a) Above speed-torque characteristic of lower resistance(b) Below speed-torque characteristic of lower resistance(c) On the speed-torque characteristic of lower resistance(d) Cannot sayThis question was posed to me in an interview for job.Asked question is from Speed Control Using Field Control of Series Motor in section DC Motors of DC Machines

For higher diverter resistance, speed-torque characteristic will lie _

1.	For higher diverter resistance, speed-torque characteristic will lie ____________(a) Above speed-torque characteristic of lower resistance(b) Below speed-torque characteristic of lower resistance(c) On the speed-torque characteristic of lower resistance(d) Cannot sayThis question was posed to me in an interview for job.Asked question is from Speed Control Using Field Control of Series Motor in section DC Motors of DC Machines
Answer» Correct answer is (b) Below speed-torque characteristic of lower resistance The EXPLANATION is: Speed-torque characteristic for decreasing values of diverter resistance or decreasing VALUE of kd will LIE above of the previous or lower value of diverter resistance. Thus, for higher diverter value curve will lie below the previous one.

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