If the efficiency of a transformer is 100%; which of the following equations would be correct? by Sunday | Mar 23 | Physics WAEC | 0 comments A. NpEp = NsEs B. NsIp= NpIs C. NsIs = NpIp D. IpEs = IsEp Correct Answer: Option D – IpEs = IsEp Users Also Read These:The efficiency of a machine is always less than 100%…The efficiency of a wheel and axle is 100% and the…Which of the following equations is the correct…The diagram below shows three forces F1, F2 and F3,…Efficiency of a transformer is equal to?