1.Calcular la fem media inducida en una bobina de 200 espiras que tarda 2x10 -2 segundos en pasarentre los polos de un iman en forma de U desde un lugar donde el flujo magnético es de 5x10 -3 Wba otro en el que este vale 8x10 -3 Wb.

Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.

Inside of a windmill or a dam is a that is used to transform one type of energy into electrical energy. a. motor b. generator c. transformer d. power pack

Ain is , is 's of ? 0.62 0.79 1.27 1.50