What is the ideal energy efficiency?, 100%, 30%, 0%, 50%, A certain process produces 300 Joules of energy from an input of 1,200 Joules of energy. What is its energy efficiency?, 20%, 25%, 30%, 70%, A man expends 100J of work to move a box up an inclined plain. The amount of work produced is 80J. What is the man's efficiency?, 80%, 20%, 800%, 78%, An LED converts around 80% of the energy supplied to it into light. How much energy is converted into light if a total of 50 J is supplied to it?, 30 J, 40 J, 50 J, 60 J, Calculate the efficiency of a heater which can convert 700 joules of chemical energy into 175 joules of heat energy., 10%, 25%, 35%, 50%.

Efficiency calculation

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