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Marine Electrical - Electricity Laws and Circuits

Learn about the laws and terminologies of electrical components of the marine environment from this free online course.

Publisher: ADU
This course on the electricity laws and circuits of marine electrical systems teaches you all the laws, terminologies, and characteristics of the electrical components in the marine environment. It also discusses the different types and operational computations of circuits and the concept of electromagnetism. Register for this course today and enhance your knowledge of marine electrical systems, electricity laws and circuits.
Marine Electrical - Electricity Laws and Circuits
  • Duration

    4-5 Hours
  • Students

    203
  • Accreditation

    CPD

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Description

Modules

Outcome

Certification

View course modules

Description

We can classify electric current into direct and alternating current based on its direction of flow. We use direct current and alternating current in different locations based on the requirement of a system. We obtain direct current using batteries, DC generators, solar cells, etc. The current is unidirectional (i.e. it will not change its direction for every half-cycle as the alternating current does). In this course, you will learn about the effects of connecting the DC sources in series and parallel. The flow of charges results in an electric current. In a wire, electrons carry the charges. However, in an electrolyte, both electrons and ions carry the charges. The SI unit of electric current is ampere. In an electric current, the particles that carry electric charge are charge carriers. AC is the current running through the wires and appliances on most ships. An AC waveform can be sinusoidal, square, or sawtooth-shaped. Alternating current electricity is the type of electricity commonly used worldwide, including onboard large vessels. The voltage of an AC power source changes from instant to instant in time.

This course begins with analysing Ohm's Law and the voltage, current, and resistance in the relationship that gives rise to the law. Investigate the series connections of power source, resistances, inductances, and capacitors along with the effects of such connections. You will understand power, its SI unit, and how it relates to the rate of work and energy. We illustrate potential dividers and their use in electrical circuits. We walk you through the characteristics of electric current flow in parallel circuits, alongside voltage and resistance quantities. We outline the effects and limitations of Ohm's Law and the series-parallel connections of electric circuits. You will study Kirchhoff's Current Law (KCL), relating complex circuits with different power sources and branches that you cannot solve with Ohm's Law. We examine Kirchhoff's Voltage Law and its application to circuits with voltage supply. We discuss the basic concept, units of measures measurement, and the types of electric currents. We analyse the direction, source, and the comparison of the direct and the alternating current. You will also learn about a magnetic field's basic concepts, properties, and effects on a conductor in electromagnetism.

This course provides an understanding of electromotive force (EMF) generation, Faraday's Laws, and the methods of producing induced EMF. By taking this course, you will study the practical AC generator in addition to the quantity of the instantaneous value of induced EMF. We also examine the frequency of EMF induced in a generator and the formula used to determine the magnitude of induced EMF. We study the concepts used in waveform and the sinusoidal variation of EMF, and the step-by-step process of calculating the average values of the sinusoidal current. You will also study an alternating current's Root Mean Square (RMS) value. You will master the concepts of phasors representation, addition, subtraction, and the J operator. Lastly, you will learn about the alternating current circuits with resistors along with the power in a resistive circuit. This course will be of significant interest to students, researchers, marine engineers, environmentalists, and anyone with interest in the electricity of the marine environment. Register for this course today to expand your interest and knowledge!

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