In a wind the combination of lift and drag causes the rotor to spin like a propeller, and the turning shaft spins a generator to make electricity.   True  False

Describe how wind turbines produce electricity by referring to energy transfers and transformations

Explain which form of energy is captured by wind turbines.

Question 6SavedDetermine whether the following statement is true or false:In the past, windmills were used to grind grain or pump water. In contrast, modern wind turbines are designed to convert wind energy into electricity.TrueFalse

the turbine of a hydroelectric power station is built below the level of a lake. The water from the lake flows down a long pipe into an automatic gate. The gate controls the mass of water passing through the blades of the turbine per second.The passing water then rotates the turbine, which then rotates a group of magnets around a coil in an alternating current generator. The magnets rotate at a constant speed that generate an electromotive force (e.m.f) of 50 000 V across a coil.In Fig 10.2 below, the running water causes the turbine to turn anticlockwise. However, the electric current drawn from the generator produces a clockwise moment that opposes the rotation of the turbine.To generate the e.m.f. of 50 000 V, the running water would need to hit the turbine blades at a certain mass per second in order to overcome the opposing moment and to turn the turbine in the anticlockwise direction. at the end the water is discharged into a river at a constant speed of 10m/s. to generate 50000V, 20A is drawn from generator, moment required to turn the turbine is 34320Nm, mass of water hitting the blades per second is 339 kg/s. calculate the amount of energy gained by the generator when 339 kg of water flows through the turbine

explain how electromagnetic induction works in the context of a generator?