What makes the wind to blow?
3 years, 9 months ago
i like a windy day.......
actually when air warms, it expands allowing it to become less dense and rise. The same thing happens to cool air, but opposite the process. So this causes a pressure difference between the poles and the equator causing cool winds to move away from the poles staying close to the ground and the warm air to move away at higher altitudes. This makes a circular motion. Now, because of this circular movement and the way that the Earth spins, the two motions come together to cause a lateral force that results in the wind moving around the Earth instead of just hanging out between the poles and the equator.
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In a series of LCR circuit R=200 ohm and voltage and the frequency of the main supply is 220 V and 50 Hz respectively. On taking out the capacitance from the circuit the current lages behind the voltage by 30 degree. On taking out the inductor from the circuit the current leads the voltage by 30 degree. The power dissipated in the LCR circuit is x then find x.
X L=X C......