Q. 404.4( 5 Votes )

# An electric motor raises a load of 0.2 kg, at a constant speed, through a vertical distance of 3.0 m in 2 s. If the acceleration power stations and thermal power stations, alternators produce electricity

A. 0.3 B. 1.2

C. 3.0 D. 6.0

Answer :

Since, Power = =

= = 3.0

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PREVIOUSWhich one of the following statements about power stations is not true?A. Hydroelectric power stations use water to drive turbinesB. In a power station, turbines drive generatorsC. Electricity from thermal power stations differs from that produced in hydroelectric power stationsD. In hydroelectric power stations and thermal power stations, alternators produce electricity.NEXTAn object is falling freely from a height x. After it has fallen a height, it will possess :A. Only potential energyB. Only kinetic energyC. Half potential and half kinetic energyD. Less potential and more kinetic energy

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