Assignment Week 4 Chapter 11 20. A parallel RL circuit has values of IL = 240 mA and IR = 180 mA. Calculate the magnitude and phase angle of the circuit current. It=√ IL^2 + IR^2= √ 240mA^2 + 180mA^2= 0.3 x 10^-3= 300mA θ= tan^-1(-IL/IR)= (-240mA/180mA)= -53° 300mA∟-53° 22. Calculate the total impedance for the circuit shown in Figure 11.38b. It= √IL^2 + IR^2= √800mA^2 + 120mA^2= 0.808949 x 10^-3= 808.95mA Zt= Vs/It= 120V/808.95mA = 148Ω θ= tan^-1(-IL/IR)= (-800mA/120mA)= -81.5= 82° 148∟82° 24
Premium Ohm's law Electric current Resistor
I’m hoping to investigate how magnetism works through different types of substances. I chose two unique substances to test magnetism through: slime and wood. I hypothesize that magnets can still work through slime and that they can work through wood‚ but I hypothesize that they can’t work through both‚ because the magnetic field will be blocked too much. I designed five different set-ups to test how the magnets react in different ways using these materials. The results of the experiment proved four
Premium Magnetic field Electromagnetism Magnet
String theory is defined by Merriam-Webster as‚ "A physical theory in which one-dimensional loops travel through space and also merge and lyse as time elapses. This is in contrast to ordinary quantum field theory‚ which predicts point particles that emit and absorb each other. String theory is a candidate for a Theory of Everything." String theory would solve the long fight between Einstein’s theory of relativity and Quantum Physics. String theory proclaims that everything in our universe‚ from
Premium General relativity Physics Quantum mechanics
A variety of representations were used to represent subject matter. Words such as “words”‚ “pictures” and “artefacts” within the concept map suggests that both textual and visual representations would be used during instruction to promote conceptual understanding of the topic. The inclusion of apparatus such as magnets‚ coils and galvanometers in the concept maps suggests that scientific tools would be used as forms of representations to transform subject matter knowledge into knowledge suitable
Premium Concept Magnetic field Concept map
André-Marie Ampère‚ a French physicist and mathematician‚ founded electromagnetism‚ which he called electrodynamics. He was born in Lyon‚ France during the French Enlightenment‚ on January 20‚ 1775. His father‚ Jean-Jacques Ampère‚ and mother‚ Jeanne Antoinette Desutières-Sarcey Ampère‚ believed André’s education should be without formal schooling‚ and allowed him to teach himself with their library. When he was twelve‚ he was able to teach himself advanced mathematics because of his access to books
Premium Isaac Newton Physics Mathematics
opening new avenues of research in areas such as mathematics and philosophy. Physics also makes significant contributions through advances in new technologies that arise from theoretical breakthroughs. For example‚ advances in the understanding of electromagnetism or nuclear physics led directly to the development of new products which have dramatically transformed modern-day society‚ such as television‚ computers‚ domestic appliances‚ and nuclear weapons; advances in thermodynamics led to the development
Premium Physics Quantum mechanics General relativity
and go from all of engineering down to my career. The degree I want to acquire is in electrical engineering. Electrical engineering is a field of engineering that generally deals with the study and application of electricity‚ electronics and electromagnetism. Electrical engineers develop and design electrical systems and electronic devices. My future job is to be an electrical engineer. To be an electrical engineer‚ you typically need to possess an academic degree with a major in electrical
Premium Higher education University Academic degree
revolution by discovering a new credible way of looking at the universe. One of the most prominent and revolutionary discoveries in the history of physics was Albert Einstein’s resolution of the inconsistencies in the current model of mechanics and electromagnetism with special relativity. Rather than attempting to remold Maxwell’s equations‚ Einstein‚ in 1905‚ rejected prevailing assumptions about the nature of time and space in the reference frames of observers with different velocities: instead of forcing
Premium Physics Science Scientific method
microseconds. A single force existed at the beginning of the universe‚ and as the universe expanded and cooled‚ this force separated into those we know today: gravity‚ electromagnetism‚ the strong nuclear force‚ and the weak nuclear force. A theory called the electroweak theory now provides a unified explanation of electromagnetism and the weak nuclear force theory. Physicists are now searching for a grand unification theory to also incorporate the strong nuclear force. String theory seeks to incorporate
Premium Fundamental interaction General relativity Physical cosmology
came together and created a new innovative solution involving geothermal power. In the early 2000’s results started showing that hydrocarbon deposit use had been reduced to half the amount which was once used. Years later‚ the importation of electromagnetisms was no longer a must because‚ the land was instead transporting it to other places‚ and the amount of production which was being done used from reusable material came out with the outcome of producing more energy than it was using. The invention
Premium Solar energy Wind power Solar power