When there is a change in magnetic field in a closed loop, a. electromagnetic induction occurs b. an e. m. f. is induced in the wire c. an electric current is created in the loop of the wire d. All of these

6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.