Computer science Engineering ..!!

cloud according to Simpson's theory Let the cloud move in the direction from left to right as shown by the arrow. The air currents are also shown in the diagram. If the velocity of the air currents is about 10 m/sec in the base of the cloud, these air currents when collide with the water particles in the base of the cloud, the water drops are broken and carried upwards unless they combine together and fall down in a pocket as shown by a pocket of positive charges (right bottom region in Fig. 7.23). With the collision of water particles we know the air is negatively charged and the water particles positively charged. These negative charges in the air are immediately absorbed by the cloud particles which are carried away upwards with the air currents. The air currents go still higher in the cloud where the moisture freezes into ice crystals. The air currents when collide with ice crystals the air is positively charged and it goes in the upper region of cloud whereas the negatively charged ice crystals drift gently down in the lower region of the cloud. This is how the charge is separated in a thundercloud. Once the charge separation is complete, the conditions are now set for a lightning stroke. The impedance of the lightning channel itself is much larger than 1/2Zo (it is believed to range from 100to 3000 2). Lightning voltage surge will have the same shape characteristics. In practice the shapes and magnitudes of lightning surge waves get modified by their Reflections at points of discontinuity as they travel along transmission lines. Lightning strokes represent true danger to life, structures, power systems, and Communication networks. Lightning is always a major source of damage to power systems where equipment In cell B8, create a formula without using a function that multiplies the value in cell B7 by the value in cell B6 and then adds the value in B7. In this formula, use a mixed reference for cell B6 by including an absolute reference to row 6. Copy the formula from cell B8 to the range B9:B11 and then copy the formulas from the range B8:B11 to the range C8:H11. 11:40 am cloud according to Simpson's theory Let the cloud move in the direction from left to right as shown by the arrow. The air currents are also shown in the diagram. If the velocity of the air currents is about 10 m/sec in the base of the cloud, these air currents when collide with the water particles in the base of the cloud, the water drops are broken and carried upwards unless they combine together and fall down in a pocket as shown by a pocket of positive charges (right bottom region in Fig. 7.23). With the collision of water particles we know the air is negatively charged and the water particles positively charged. These negative charges in the air are immediately absorbed by the cloud particles which are carried away upwards with the air currents. The air currents go still higher in the cloud where the moisture freezes into ice crystals. The air currents when collide with ice crystals the air is positively charged and it goes in the upper region of cloud whereas the negatively charged ice crystals drift gently down in the lower region of the cloud. This is how the charge is separated in a thundercloud. Once the charge separation is complete, the conditions are now set for a lightning stroke. The impedance of the lightning channel itself is much larger than 1/2Zo (it is believed to range from 100to 3000 2). Lightning voltage surge will have the same shape characteristics. In practice the shapes and magnitudes of lightning surge waves get modified by their Reflections at points of discontinuity as they travel along transmission lines. Lightning strokes represent true danger to life, structures, power systems, and Communication networks. Lightning is always a major source of damage to power systems where equipment In cell B8, create a formula without using a function that multiplies the value in cell B7 by the value in cell B6 and then adds the value in B7. In this formula, use a mixed reference for cell B6 by including an absolute reference to row 6. Copy the formula from cell B8 to the range B9:B11 and then copy the formulas from the range B8:B11 to the range C8:H11. 11:40 am