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effectiveness of a fin is the rate of heat transfered by the fin to the rate of heat transfered without the fin.By knowing the effectiveness we can determine how a fin increases the heat transfer rate when compared to the normal surface without a fin.Whereas by determining the efficiency of a fin we can know the heat transfering capacity of the fin material.

both are ratio to heat transfer by fin but, in effectiveness we take base area of fin, other hand in fin efficiency we choose fin area except base area or area which contact with surrounding.

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What is difference between effectiveness and efficiency and why?

effectiveness refers to the ability to produce the desired results. efficiency refers to the correctness of the produced result ex; effectiveness is like making an engine of high performance and efficiency is like the extent to which it works and reach the goal of the manufacture


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Efficiency refers to doing things in the most economical way possible, while effectiveness is about achieving desired outcomes. Organizations can strike a balance between the two by focusing on streamlining processes for efficiency and aligning goals with actions for effectiveness. This can be achieved through clear communication, setting measurable objectives, and regularly evaluating performance to make necessary adjustments. By optimizing both efficiency and effectiveness, organizations can improve their overall performance and achieve their goals more effectively.


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Efficiency is all about saving time, money or effort. Effectiveness is all about getting the job done.Improved:Efficiency is doing things right, and effectivenessis doing the right things. Efficiency is a measure of speed and cost. For example: Efficiency says "Getting someone in here right away is more important than getting the right person later." Effectiveness is a measure of quality. Effectiveness says the opposite: "Hiring the right person is more important than hiring someone right away."


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