circuit will still continue to work. But parallel circuits are more complex and expensive to create. There is no point to a circuit if you don’t have anything to flow through it‚ so thats where moving electrons known as an electric current is useful. An electric current is the electrons that flow
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and in 1820‚ after H.C. Orsted’s discovery that a magnetic needle is acted on by a voltaic current‚ Andre sent a paper of his own to the Academy that was much more detailed. He didn’t wait‚ on September 18‚ 1820‚ the very same day that he sent his paper‚ he presented a demonstration to the Academy that parallel wires with electric currents would pull or push at one another based on whether the electric currents was moving in the same or opposite directions. In demonstrating this experiment he laid the
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reduced for static relay? 3. discuss how the amplitude comparator can be converted to phase comparator and vice versa? 4. define static over current relay? Explain instantaneous over current relay with neat diagram? 5. explain definite time over current relay and inverse time over current relay with neat diagram? 6. define relays? Explain basic relay circuit and explain how the relay are classified based on the technologies? HVDC 1.explain necessity of hvdc
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movement. This movement of electrons‚ carrying an electric charge through a conductive material is called an electric current. Electrons in motion experience collisions with the lattice ions of the conductor which slows their progress. This opposition to the flow of electric current a conductor produces is called its electrical resistance (Walding‚ 2004). The amount of current in the circuit depends on the resistance of the material and the voltage. The force motivating electrons to move through
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a) To Patricia‚ I have assessed the current business situation for the Lodge Bistro Chain and I have decided to demonstrate‚ how your chain is effected by the external environment (threats)‚and what are the internal problems (weaknesses).To identify the problems I have done the SWOT analysed‚ and presented the two groups of factors which effected your business position. |STRENGHTS |WEAKNESSES
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A.C current meters Introduction An ammeter is a measuring instrument used to measure the electric current in a circuit. Electric currents are measured in amperes (A)‚ hence the name. Neither type of basic dc PMMC meter movement will correctly indicate an alternating current. There are‚ however‚ four basic types of meter movement that will indicate ac values:- Thermocouple Hot wire Electrodynamometer Iron-vane Electrodynamic ammeters An electrodynamic meter uses an electromagnet instead
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an electric current around a circuit. Resistance is measured in Ohms. George Ohm discovered that a circuit sometimes resists the flow of electricity. He called this ’RESISTANCE.’ He even came up with a rule for working out the resistance of a circuit‚ which was: R= V ÷ I V- Volts I- Current R- Resistance Ohms law says the more resistance means more energy is needed for the current to pass through the wire. Resistance is a measure of how much energy is needed to push the current through something
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10.Classifying Transactions. Classify each of the following as a transaction reported in a subcomponent of the current account or of the capital and financial accounts of the two countries involved:a.A U.S. food chain imports wine from Chile: Debit to U.S. goods part of the current account‚ credit to Chilean goods part of the current account. b.A U.S. resident purchases a euro-denominated bond from a German company: Debit to U.S. portfolio part of the financial account; credit to German portfolio
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of peaking exports during the period‚ analysts said Wednesday. They said a recovery in exports in the last six months of 2013 would strengthen Taiwan’s current account surplus and help offset financial outflows to keep the country’s balance of payments positive. The balance of payments is comprised of three categories‚ including the current account‚ which largely measures merchandise and service transactions‚ and the financial account‚ which reflects flows in direct investments and portfolio
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Kirchoff’s laws for networks are: (a) The algebraic sum of branch currents meeting at any node is zero. (b) The algebric sum of voltage drops in any set of branches forming a closed circuit or loop must be equal to zero. (c) Both (a) and (b) (d) Neither (a) and (b) 3. Mutually coupled circuit is a circuit which is: (a) Bilateral (b) Unilateral (c) None of these (d) Either (a) or (b) 4. Duality is a (a) Transformation in which current and voltages are interchanged (b) Active sources become passive
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