Sustainable Energy 1. How can electricity be defined? Electricity can be defined as the flow of electrical power or charge. It is a type of energy fuelled by the flow of electrons from positive and negative points within a conductor. 2. What is an electrical circuit? 3. What components are required to create an electrical circuit? In order to create an electrical circuit‚ you need: a) A source of electric power (battery or generator) b) A load to absorb the power (lamp
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ELECTRICITY (CLASS – X) QUESTIONS FOR PRACTICE 1. State the law that governs the strength of the current passing through a metallic conductor when a p.d is applied across its end. Illustrate this law graphically? 2. Why is an ammeter connected in series and voltmeter in parallel in a circuit? 3. In an experiment the current flowing through a resistor and potential difference across it are measured. The values are given below. Show that these values confirm Ohm’s Law and also find the resistance
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solar energy is the most renewable and viable source of energy. * The practical use of solar energy is inexhaustible. Leonardo Da Vinci (1452-1519) proposed the concentrating solar principle‚ which a concave mirror directs rays to solar water heaters. Also upon launch‚ satellites and spacecrafts use solar energy as their main source. * Solar energy is responsible for the weather and ocean currents. Majority of the thermal energy which is due to solar energy stored in the ocean. This means
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” (December 18‚ 2012). ScienceDaily. Retrieved September 18‚ 2013 from http://www.sciencedaily.com/releases/2012/12/121218094216. Cernansky‚ Rachel. “Space Heaters in Caves Could Protect Bats from Mysterious Disease” (March 5‚ 2009). Discover Magazine‚ Retrieved September 18‚ 2013 ‚ from http://blogs.discovermagazine.com/80beats/2009/03/05/space-heaters-in-caves-could-protect-bats-from-mysterious-disease/#.UnFK83BJOfV. White Nose Syndrome (September 17‚ 2013). Retrieved September 18‚ 2013 from http://whitenosesyndrome
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stemless glass funnel‚ Hirsch funnel‚ capillary tube‚ long glass tube‚ watch glass‚ glass vial‚ water condenser‚ retort stand‚ retort clamps‚ spatula‚ cork stand‚ fluted filter paper‚ filter paper for Hirsch funnel‚ electronic weigh‚ electrothermal heater‚ oven‚ aspirator‚ electrothermal device to determine melting point. Chemicals : Crude diphenyl (3.0 g)‚ ethanol (20 mL)‚ decolourising charcoal (1.0 g)‚ boiling chips‚ ice Procedure : Crude diphenyl (3.0 g) is measured and obtained using
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considering the 3 samples used in this experiment‚ the samples prepared at this experiment the sample as delivered was analyzed without any kind of treatment (sample I)‚ the sample with slow cool was prepared melting the bulk material at a heater an letting it cools at the heater at a slow rate (sample II)‚ finally‚ the sample with quick cool was made melting the bulk material and then slow cooled as the sample II‚ after this the sample was melted again and quickly cooled using liquid nitrogen (sample III)
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NGOC DO Common Childhood Illnesses and Injuries HPRS 1304 Ms. Williams Children are more prone to diseases. They catch disease easily and recover fast too. You must learn to protect your children from diseases and also from many other problems which can be prevented‚ if you care a little. Chickenpox is a contagious illness that causes an itchy rash and red spots or blisters all over the body. Chickenpox usually isn’t a serious health problem in healthy children. But a child with chickenpox
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As a fossil fuel its combustion contributes CO2 to the atmosphere‚ and so contributes to climate change. The particulates it emits on combustion contribute to inner-city pollution. Its extraction around the world is a dirty process‚ despite some half-hearted efforts to convince us otherwise. And the global appetite for oil-based fuels makes the environment‚ or indigenous people‚ only a secondary consideration in the oil business. To cap it all‚ most oil production is from politically unstable regions
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supply is correct to suite the equipment. Switch on the main power on the control panel. Adjust the set-point value on the temperature controller to 500C. Warning!! Do not set the temperature controller beyond 700C. Switch on the heater. Observe the water temperature heats up to 50 0C and remain constant. The equipment is now ready for experiment. Priming procedure for capillary Tube: Before using the capillary tube in an experiment using acetone‚ students are advised to clean
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parts in the market • Cost of parts and durability Safety: • Airbags • Strong Chassis • Driver Assistance such as ABS‚ Electronic Stability Control‚ Tire Pressure Monitoring‚ etc. • Post Crash Survivability Comfort: • Air Conditioner and Heater • Air Suspension • Automatic Transmission • Cruise Control • Heated Seats • Memory Seats • Power Seats and Windows Entertainment: • Satellite Radio • Rear Seat Entertainment Other Options and Extras: • Leather Seats • Keyless Start
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