[amp_mcq option1=”100 per cent” option2=”98 per cent” option3=”50 per cent” option4=”25 per cent” correct=”option2″]<\/p>\n
The correct answer is B. 98 per cent.<\/p>\n
A power transformer is a device that transfers electrical energy from one circuit to another without changing the frequency. It does this by using electromagnetic induction to create a magnetic field that induces a voltage in a second coil. The efficiency of a power transformer is the ratio of the output power to the input power. It is typically expressed as a percentage.<\/p>\n
The efficiency of a power transformer is affected by a number of factors, including the design of the transformer, the quality of the materials used, and the operating conditions. The efficiency of a power transformer is typically around 98%. This means that for every 100 watts of input power, the transformer will produce 98 watts of output power.<\/p>\n
The efficiency of a power transformer is important because it can affect the overall cost of electricity. A transformer that is less efficient will use more power, which will result in higher electricity bills.<\/p>\n
Option A is incorrect because the efficiency of a power transformer is not 100%. There are always some losses in the transformer, such as heat loss.<\/p>\n
Option C is incorrect because the efficiency of a power transformer is typically around 98%.<\/p>\n
Option D is incorrect because the efficiency of a power transformer is typically around 98%.<\/p>\n","protected":false},"excerpt":{"rendered":"
[amp_mcq option1=”100 per cent” option2=”98 per cent” option3=”50 per cent” option4=”25 per cent” correct=”option2″]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[960],"tags":[],"class_list":["post-56469","post","type-post","status-publish","format-standard","hentry","category-transformers","no-featured-image-padding"],"yoast_head":"\n