distance r‚ from an infinitely long wire that carries a current I. Your derivation should include the direction of the magnetic field with respect to the direction of current flow. Verify your expression by using the experimental results obtained. If your results do not show the expected relationship‚ explain why. In order to derive an expression for the magnetic field B at a point of distance r‚ from an infinitely long wire that carries a current I‚ we can refer to fig. 10. From symmetry‚ B must be
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The Force Between Two Parallel Current Carrying Conductors Aim: To observe the direction of the forces between two parallel CCDs. Hypothesis: That the CCD with current flow in the same direction will be attracted to each other and CCDs with current flow in opposite directions will repel. Apparatus: -Variable DC power supply * Variable resistor (15ohm rheostat) * Connecting wires * Retort stand * Clamp * Two pieces of thick card or balsa wood 10cmx10cm * Two strips of
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Current and Resistance Physics Investigation Aim: Investigate how the length of a wire affects the current and resistance of a wire. Prediction and Hypothesis: I think as you increase the length of the Constatan wire‚ you also increase the amount of resistance. The current is the flow of electrons; the current is dependent on the amount of voltage‚ which is applied. Voltage is the push given to the current. The current has to go through a circuit‚ which contains resistance so if you increase
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I am going to investigate how the resistance of the wire affects a current flowing through a wire. I know that as resistance changes‚ current changes‚ as Ohm’s law: I = V/R. If one part of an equation changes‚ the equal must be done to the opposite side. To detect how resistance affects current‚ I must first discover what factors affect resistance. These factors are: · Length of the wire if a wire is longer; there are more particles for electrons to move through‚ and therefore more resistance
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Differentiate among the current account‚ balance of trade and balance of payments. Current account is the net profits that a country gain from its export and imports of goods and services‚ earning from foreign investment also the included the profits from transfer of payments. Current account is important because it includes all international merchandise trade and service accounts‚ that is‚ accounts for the value of all merchandise and services imported and exported and all receipts and payments
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In this analysis‚ the stator current signal transformed to the frequency domain using a FFT algorithm. The stator current signal of the motor is used to analyze and detect specific fault frequencies related to incipient faults. For stator winding fault‚ there is an associated fault frequency that may be identified in the spectrum. The stator fault has been detected by comparing the healthy power spectrum to faulty power spectrum. The power spectrum of stator current for healthy no-load condition
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Budget Deficits and Current Account Disequilibrium in Nigeria: An Econometric Investigation (1970-2010) BY Iyeli I. Iyeli‚ (Ph.D)‚ Clement Utting and Jacob O. Owan Department Of Economics University Of Calabar Calabar‚ Nigeria e-mail:reiyeli@yahoo.com; Tel: +2348036558316 Abstract This study on budget deficits and current account disequilibrium in Nigeria seeks to investigate the effects of budget deficits on current account within the time frame of 1970-2010. Data on this
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the voltage‚ resistance‚ current and temperature in a conductor Check “show battery” and “show cores”‚ watch what happens‚ adjust some variables 1. Why do electrons (blue dots) move? The flow of current (+) is opposite to the flow of the electrons. ; note if toward or away from + terminal of the battery. The electrons move due to voltage of the battery‚so the battery causes an electric field which make the electrons experience a force because of that field. The current flow on the opposite direction
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Investigating the current - potential difference relationship for a metal wire. Aim: To design an experiment that will facilitate an I - V Graph to be ascertained of a metal wire and thus find the resistance of the wire by deriving the inverse of the gradient of the graph. Skill: Planning & Designing Theory: Resistance is a property of any object or substance to resist or oppose the flow of an electrical current. The quantity of resistance in an electric circuit determines the amount of current flowing in
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Rectifiers Without Current Sensors Bingsen Wang‚ Member‚ IEEE‚ Giri Venkataramanan‚ Member‚ IEEE‚ and Ashish Bendre‚ Member‚ IEEE Abstract—Three-level rectifiers with reduced number of switches (such as the Vienna Rectifier) to improve the input power quality of rectifier systems have been receiving wide interest in the past years. In this paper‚ a new carrier-based pulsewidthmodulation control algorithm is proposed for such converters to eliminate the low-frequency harmonics in the line current while achieving
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