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124.In fact the electrical generator was a way of converting mechanical energy into electrical energy.

125.By observing the movement of charge particles inside an electric field one can predict the exact characteristics of that field.

126.The formulas required for solving current, voltage and resistance problems have already been defined.

127.When beginning to explore the world of electricity and electronics, it is vital to start by understanding the basics of voltage, current, and resistance.

128.Since high voltages are more efficient for sending electricity over great distances, AC electricity has an advantage over DC.

129.Knowing the formulas which arise out of Ohm's Law is not necessarily helpful for repairing automobiles.

130.By introducing a more sophisticated control element, the microprocessor, you introduce a significant new tool in solving the robot control problem.

131.The majority of equations and laws for analyzing circuits can be derived directly from Ohm’s Law.

132.By knowing Ohm’s law, you understand the concept that is the basis for the analysis of any electrical circuit!

133.In particular it is worth being aware of the limitations of real devices as these can significantly affect the performance of your circuit.

134.Many students admit they know grammar rules but when speaking they can't help making errors.

135.The curie is a basic unit of measurement for describing radioactivity.

136.But instead of using iron core one could also use air core and the result is a solenoid.

137.Try rubbing a balloon against your skin or hair to experience electrostatic charging.

138.The story was often told at Bell Labs about Mervin Kelly being a manager with much foresight.

139.We have often seen that while working, without wearing proper insulator shoes, we experience an electric shock.

140.Innumerable applications due to developments in digital communications have already started influencing our day-to-day activities directly or indirectly.

141.The electromagnetic force can be compared to the gravitation force, by considering these forces between two charged particles.

142.Miniaturization of products is an example worth considering.

143.Maximizing transmission range involves transmitting as much power as possible (within governmental regulatory limits) while providing a receiver with excellent sensitivity since the total transmit distance is a function of both the transmitter output power and the sensitivity of the receiver.

144.While comparing the activity of pure uranium to a uranium ore sample, the Curies found that the ore was significantly more radioactive than the pure material.

145.Calculus is Latin for stone, and the ancient Romans used stones for counting and arithmetic. In its most basic sense, calculus is just that - a form of counting. After advanced algebra and geometry, it is the next step in higher mathematics, and is used for solving complex problems that regular mathematics cannot complete.

146.After going quietly through your entire house without your noticing, he sets the catch[2] on the window so he can return later, when you're not home or when you simply aren't watching.

147.Please don’t try frying your tea; that makes no sense at all and will probably be awful.

148.Scientists have tried designing microparticles and nanoparticles that can deliver biologics, but such particles are expensive to produce and require a new version to be engineered for each drug.

149.Instead of trying to create a transparent photovoltaic cell (which is nigh impossible), they use a transparent luminescent solar concentrator (TLSC).

150.By providing information, training (e.g. through induction) and appropriate resources staff can gain the skills to assess their own workstation ergonomics.

151.For finding the current we can use upper right half of the circle and depending upon the given variable we can find the value of the current in the circuit.

152.By using symbols, lines and colors, topographic maps illustrate both natural and human-made features.

153.Using green methods of electricity production will prevent the world from being harmed ecologically, by eliminating pollution and greenhouse gases that contribute to global warming.

154.The key in using significant figures is to be sure that you are maintaining the same level of precision throughout the calculation.

155.In fact, sound is not absorbed very strongly even by passing through several inches of wood.

156.The advantage of using power of ten notation is that it makes addition, subtraction, multiplication, and division of very large or small numbers easier.

157.The idea of using sound to determine the depth of a lake or ocean was first proposed in the early nineteenth century.

158.By placing a compass close to a wire carrying a reasonably large direct current, the compass needle can be seen to be deflect.

159.By knowing any two values of the Voltage, Current or Resistance quantities we can use Ohms Law to find the third missing value.

160.After rubbing a piece of silk against a piece of glass, the silk and glass would tend to stick together.

161.By creating a sine wave and running it through a wire, you create a simple radio transmitter.

162.Diagnosing bearing failure in a hermetic motor is often difficult because no visual inspection or feeling of the rotation can be accomplished.

163.But instead of using iron core one could also use air core and the result is a solenoid.

164.Try rubbing a balloon against your skin or hair to experience electrostatic charging.

165.The first step in being able to effectively diagnose electrical problems is to have a good understanding of basic electrical principles.

166.By measuring the wavelength or frequency of light coming from objects in the universe, we can learn something about their nature.

Дата: 2018-11-18, просмотров: 477.