RESISTANCE AND EMF OF A BATTERY CELL DCP ASPECT 1 SYMBOLS: Internal resistance of the battery: r External variable resistor: R Voltage: V EMF of the battery: E Current: I FORMULA V= IR E = I (R+r) E = IR +I ⋅ r E = V + I ⋅ r V = E - I ⋅ r V = -r ⋅ I +E _Graph of V against I will be plotted in order to_ _determine the internal resistance and EMF of the battery. The slope will be -r and the intercept vertical axis will be the EMF (E)._ REFERENCE VALUE EMF of the battery 1. 490 ± 0.001V
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The dry cell or Leclanche cell was the first commercial battery and therefore had a big impact on society. It is the most common and the cheapest of the commercially available cell and is most widely used in torches‚ portable radios and battery-operated clocks. It is best used for low drain appliances‚ which need only small currents such as portable items (radio). It consists of a zinc outer casting‚ the anode‚ an aqueous paste of ammonium chloride and a mixture of powdered carbon and manganese
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BSBMKG605 Evaluate International Marketing Opportunities Assessment Task 1 Within this report I will assess and evaluate the current International Marketing opportunities of French wine company‚ Zie Beverages‚ and in particular will focus on the importation of wine into the United States. I will look to ascertain both the opportunities and risks that the US market may offer to Zie and will look to address each point to achieve an optimal outcome and an effective marketing policy for the company
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EXECUTIVE SUMMARY The African Growth and Opportunity Act was signed into law by President Clinton in May 2000 in order to promote the US and African trade relations and to promote economic development on the African continent through export-led growth. To expand trade and investment in South Africa. To help grow economic and encourage economic integration. The report examines the impact of the AGOA during the past years. It has benefited South Africa’s economics. The report provides incentives to
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How to Avoid Your Battery Running Out Looking for maintenance tips to keep your car battery running like new? Many car owners are keen towards auto parts and their maintenance. However‚ battery gets the least attention. Many car owners replace it if they hear clicking noise or battery dies. If you want to avoid battery running out‚ then there are lots of things you can do it. Here are some tips that will help you keep it running like new all throughout the year. With little efforts‚ you can save
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Chapter 1 The Problem-And It’s Background Potato as an alternative battery for scientific calculator is the chosen topic of the researchers. The researchers thought of many topics but the topic about the scientific calculator get their attention. They thought that scientific calculator is very useful to students especially to 4th year students. A scientific calculator is a type of electronic calculator‚ designed to calculate problems in science‚ engineering‚ and mathematics. They have
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Professional Opportunities with a Business Degree Carla Thomas Drayton March 14‚ 2011 Essentials of Managerial Communication Jodi Russo New Professional Opportunities a Business Degree Affords A career in business is more varied than most people realize. Having a career in business you can involve the obvious functions such as management and marketing. Again most people don’t know that you can be the backbone for economic‚ political and social systems at all levels. Having a business
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BAT TERY CHARGER Before reading‚ unfold the page containing the illustrations and familiarise yourself with all functions of the device. Käännä ennen lukemista kuvallinen sivu esiin ja tutustu seuraavaksi laitteen kaikkiin toimintoihin. Vik ut bildsidan och ha den till hands när du läser igenom anvisningarna och gör dig bekant med apparatens/maskinens funktioner. Før du læser‚ vend siden med billeder frem og bliv bekendt med alle apparatets funktioner. Slå opp siden med illustrasjoner før bruksanvisningen
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it is for business purpose or for personal use‚ one needs an efficient way of charging the cell phone battery. But most people probably don’t like being tethered to the wall‚ as the battery charge is a prime constraint in the uninterrupted communication device. Try Thinking of a system where your cell phone battery being charged while u talk. No more worrying about forgetting to charge the battery. Sound Impossible? The present discussion is to charge the mobile while talking over it. This task can
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Pollution control in recycling of lead batteries Introduction: Lead is one the most successfully recycled material in the world. Over the years lead recycling has greatly matured as a result over half of the lead produced and used each year throughout the world has been used before in other products. Today over 80% of the lead is used in the making of lead-acid batteries which are theoretically speaking 100% recyclable. Lead recycling however has one critical problem‚ lead and the many of the
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