Making a Potato Powered Light Bulb Materials: A large potato Two pennies Two zinc-plated nails or screws Three pieces of copper wire A very small light bulb or LED light 1) Get a potato and cut it in half. Then make a small slit in each half just big enough to put a penny into. 2) Cut two pieces of copper wire and wrap one around one of the pennies a few times‚ and wrap the other one around the other penny a few times as well. 3) Take a third piece of copper
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Cowley‚ M. (2002). A practical guide to ECG monitoring and recording. Retrieved September 20‚ 2003: http://www.mikecowley.co.uk/leads.htm. Crow‚ R.‚ Park‚ L.‚ & Rautaharju P.M. (1998). A standardized procedure for locating and documenting ECG chest electrode positions: consideration of the effect of breast tissue on ECG amplitudes in women. Journal of Electrocardiology: 31‚ (1):17-29. Dougherty‚ L. & Mallett‚ J. (2000). Royal Marsden Manual of Clinical Nursing Procedures. 5th edn. 406-407. Ford‚ S. (2002)
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AIM TO STUDY THE VARIATION OF CONDUCTANCE WITH CHANGE IN DISTANCE‚MOLARITY AND TEMPRATURE. CERTIFICATE I have the pleasure to certify that RAGHUVANSH SINGH BHALLA student of class XII (Science) of J.D. Tytler School has persuade his work and prepared the dissertation on the topic. To study the variation of conductance with change in distance‚ molarity and temperature . Under my supervision and guidance‚ this is being submitted for
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A schematic of a typical fuel cell is shown in “Fig. 1”. Two electrodes are separated by a semi-permeable membrane and placed into solution. A biological species like an enzyme or microbial cell can either be in solution (or a suspension) within the anodic compartment of the cell or alternatively be immobilised at the electrode. Once a suitable fuel is introduced‚ it is oxidised at the anode partially or totally and the electrons released by
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Intra-body Communication using Personal Area Network Abstract Intra-body communication is a "wireless" communication technique that enables electronic devices on or near the human body to exchange the information. For this the characteristics of the human body are studied. The human body acts as a signal transmission medium and it uses the dielectric properties of human tissues for data exchange which covers frequency range from 100 KHz to 150MHz. Transmitting data directly through the skin can
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happens at anode (positive electrode) → think anOde (O2 in the electrolysis of water xp) Redox reactions: Reactions involving the transfer of electrons e.g. burning‚ rusting‚ photosynthesis‚ respiration and the browning of apples. happens in three types of reactions: 1. addition of oxygen 2. removal of hydrogen 3. increase in valency (how easily an atom can combine with other chemical species) Reduction → the gain of electrons → always happens at cathode (negative electrode) → think catHode (H2 produced
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Anything made of metal‚ no matter how big or small‚ can be welded. Examples are everywhere‚ from vehicles like cars‚ trucks and motorcycles to rail cars‚ ships‚ aircraft‚ rockets and space stations. Construction is a huge market‚ and skyscrapers‚ bridges and highways would be impossible to build without welding‚ as would oil and natural-gas pipelines‚ offshore oil platforms‚ giant wind turbines and solar panels. Welders help install and maintain boilers‚ antipollution systems and other large structures
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reduces the contribution of non-frontal sources to frontal asymmetry and provides a better index of individual differences in the frontal asymmetry. The CSD however also comes with some limitations‚ more electrodes are needed for its estimation and its heightens the difference between electrodes which leads to the filtering out of small active patches of cortex between the
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DETERMINATION OF ELECTRODE POTENTIALS N.M. PICART1 and A.J. EDUARDO2 1INSTITUTE OF BIOLOGY‚ COLLEGE OF SCIENCE 2INSTITUTE OF BIOLOGY‚ COLLEGE OF SCIENCE UNIVERSITY OF THE PHILIPPINES‚ DILIMAN‚ QUEZON CITY 1101‚ PHILIPPINES DATE SUBMITTED: 22 APRIL 2015 DATE PERFORMED: 15 APRIL 2015 ANSWERS TO QUESTIONS 1. Discuss the differences between galvanic and electrolytic cells. A galvanic cell uses a spontaneous reaction to generate electrical energy. In the cell reaction‚ some of the difference in
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2012/2013 QUESTION 1 [10 marks] A high voltage assembly consists of two concentric spherical electrodes; aligned at the same center point. The inner electrode has a radius r1 whereas the outer electrode‚ r2. The voltage difference between the two electrodes is denoted as V. Using Gauss’s theorem and electrostatic principle‚ derive the expression for field enhancement factor of this electrode configuration. (10 marks) Page 2 of 7 Test EEPB463‚ Semester 1 2012/2013 Page 3 of 7
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