[amp_mcq option1=”low frequencies” option2=”reduced values of open loop gain” option3=”increased values of open loop gain” option4=”none of the above” correct=”option1″]<\/p>\n
The correct answer is: A. low frequencies.<\/p>\n
A conditionally stable system is a system that is stable for some values of the open-loop gain but unstable for other values. The system exhibits poor stability at low frequencies because the phase margin is small at these frequencies. The phase margin is a measure of how close the system is to instability. A small phase margin indicates that the system is close to instability and that a small change in the open-loop gain could cause the system to become unstable.<\/p>\n
Option B is incorrect because reduced values of open-loop gain can actually improve the stability of a conditionally stable system. This is because reduced values of open-loop gain increase the phase margin and make the system less likely to become unstable.<\/p>\n
Option C is incorrect because increased values of open-loop gain can actually worsen the stability of a conditionally stable system. This is because increased values of open-loop gain decrease the phase margin and make the system more likely to become unstable.<\/p>\n
Option D is incorrect because a conditionally stable system can exhibit poor stability at low frequencies.<\/p>\n","protected":false},"excerpt":{"rendered":"
[amp_mcq option1=”low frequencies” option2=”reduced values of open loop gain” option3=”increased values of open loop gain” option4=”none of the above” correct=”option1″]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[961],"tags":[],"class_list":["post-52209","post","type-post","status-publish","format-standard","hentry","category-electrical-control-systems","no-featured-image-padding"],"yoast_head":"\n