answer sheets. 1 Electric cells store electrical energy. 2 A bulb in a circuit will light up once it is connected to one end of a battery. 3 When the resistance of a circuit increases‚ the current flows around the circuit will become smaller. 4 Two fuses rated 15 A connected in series allow a current larger than 30 A to flow through them. 5 The live wire in a plug is blue in colour. B Multiple-choice questions (20 marks‚ 2 marks each)ġ Choose the correct answer for each of the following
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operate using vibration energy sources other than the standard charging mechanisms. As most of latest mobile phones are capable of charging from Universal Serial Bus (USB) we decided to design our circuit capable of supplying standard USB voltage and current rating. The circuit consists of a piezoelectric buzzer‚ a rectifier with a storage capacitor‚ an amplifier section‚ regulator and a switching mechanism that controls the energy flow into the battery. Experimental results showed that the method is
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Global Remittances 1. Where are remittances across borders included within the balance of payments? Are they current or financial account components? • The United States Bureau of Economic Analysis (BEA)‚ which is responsible for the compilation of U.S. balance of payments statistics‚ classifies migrant remittances as "current transfers" in the current account. • Wider definitions of remittances may also include capital assets which migrants take with them to host countries‚ and similar assets which
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Burner Flame Out · Street Light Control · Position Sensor *LDR has a disadvantage that when its temperature changes‚ its resistance changes drastically for a particular light intensity. 2 AIM & APPARATUS AIM: To study the variations‚ in current flowing in a circuit containing a LDR‚ because of a variation:(a) In the power of the incandescent lamp‚ used to ‘illuminate’ the LDR. (Keeping all the lamps at a fixed distance). (b) In the distance of a incandescent lamp‚ (of fixed power)‚
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to develop electricity. His name was George Westinghouse‚ and he was very interested in alternating current. Edison bought Tesla’s ideas‚ and developed an AC system that lit up the 1893 Chicago World’s Fair. Three years later an AC system began turning the energy of Niagara Falls into electricity. Before that Edison relied only on direct current which only went up to one mile while alternating current went over one hundred miles. Soon Tesla‚ who proudly became an American citizen in 1891‚ was one
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Since the flux is sinusoidal‚ r.m.s = (form factor*average e.m.f )/turns But form factor = (r.m.s value)/(average value) =1.11‚ Then r.m.s value of E.m.f = 1.11*4F*max.Flux = 4.44F*max.Flux‚ But max .flux = B_m*A r.m.s value of E.m .f in primary turn (Tp) = 4.44F*B_m*A*T_p NOTE: Bm is assumed to be 15000Wb/m. F = Frequency of A.C input/ Output F=50 Hz By introducing stacking factor (10-8) and Tp factor (0.9) then we have Number of turns per volt = N_T/V =7/A =7/3.75=1.87turns/volts
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Earthing Techniques 1. SOIL RESISTIVITY TESTING.................................................................................................................................... 1.1 INTRODUCTION................................................................................................................................................................. 1.2 THEORY OF SOIL RESISTIVITY.............................................................................................................
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LPU | Managerial Accounting | Analysis of Balance sheet and P&L account of Tata Steel | | | | To‚ Miss Razia Sehdev By‚Harprit Singh RQ3703A057450070001 | 9/5/2011 | Index Industry Profile _______________________________________________ 03 Comparative Analysis __________________________________________ 04 Trend Analysis _______________________________________________ 05 - 07 Common size statement _________________________________________ 08 Financial Ratio &
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Over the course of history‚ many figures have been compared as the best in their field. Both typically share the star light‚ however‚ a few do not. Nikola Tesla and Thomas Alva Edison were both champions of the power of electricity and hold over a thousand patents combined. Both men were responsible for designing the future of technology‚ although Tesla never reaped the rewards of doing so. Thomas Edison and Nikola Tesla both discovered‚ invented‚ and patented many new things‚ but both had very different
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Income Statement Data (component percentages) Gross Profit 15.2 Not Applicable Not Applicable 44.0 Profit before Taxes 1.8 3.3 2.5 7.0 Ratios Current ratio (over the last five years) 1.6 1.3 0.5 1.8 Inventory turnover ratio 27.8 Not Applicable Not Applicable 3.4 Debt-to-equity ratio 1.8 2.3 5.8 1.4 4. Use the current asset section of the balance sheets of the El Paso Company as of January 31‚ 2012
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