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Electric Current and Theory of Electricity | Heating & Magnetic ...

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... What is Electric Current? Definition Theory of Electricity Measurement of Current Conve-ntional Flow of Current Types of Current Alternating Current Conventional Direction of Altern-ating Current Effects of Electric Current Heating Effect ...


Objective Questions on Electric Current | Electrical4u

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... galvanometer is used to detect the electric current. Because, the galvanometer has a coil that energizes by current and according to that current, needle is actuated. Since, it is used to detect some micro ampere current only. To measure ...


Questions and Answers on Electric Current | Electrical4u

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... that the heat released due to electric current , is related to the resistance of the conduc-tor, and current flowing through the conductor. But total heat released from a conductor is also related to the duration for which the current is ...


Multiple Choice Questions on Electric Current | Electrical4u

www.electrical4u.com/objective-questions-electrical-engineering-2 ...

... of copper conductor. For 1 sq mm safe current is 10 A. In case of 1.5 sq mm the safe current is 15 A. For carrying an current of 75 A an aluminium conductor should have a minimum cross-section of 25 mm 2 . 10 mm 2 . 15 mm 2 . 20 mm 2 . The ...


DC Motor or Direct Current Motor | Electrical4u

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... that converts DC electrical energy to a mechanical energy. Principle of DC Motor This DC or direct current motor works on the principal, when a current carrying conductor is placed in a magnetic field , it experiences a torque and has a ...


SI System of Units | Electrical4u

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... Questions Descriptive MCQs Earn with us Search for: Nature of Electricity Drift Velocity Drift Current and Electron Mobility Electric Current and Theory of Electricity | Heating & Mag-netic Effect Voltage or Electric Potential Differenc ...


Electrical DC Series and Parallel Circuit | Electrical4u

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... DC Circuit There are two types of electricity - direct current and alternating current , i.e, DC and AC. The circuit that deals with direct current or DC, is referred as DC circuit and the ci-rcuit that deals with alternating current or AC, ...


Ohms Law | Equation Formula and Limitation of Ohms Law | Electrical4u

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... Questions Descriptive MCQs Earn with us Search for: Nature of Electricity Drift Velocity Drift Current and Electron Mobility Electric Current and Theory of Electricity | Heating & Mag-netic Effect Voltage or Electric Potential Differenc ...


Battery | History and Working Principle of Batteries | Electrical4u

www.electrical4u.com/battery-history-and-working-principle-of-bat ...

... Questions Descriptive MCQs Earn with us Search for: Nature of Electricity Drift Velocity Drift Current and Electron Mobility Electric Current and Theory of Electricity | Heating & Mag-netic Effect Voltage or Electric Potential Differenc ...


Ideal Dependent Independent Voltage Current Source | Electrical4u

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... Independent Voltage Source Independent Current Source Dependent Voltage & Current Source Ideal Voltage Source Ideal Current Source Current Source to Voltage Source Conver-sion There are several voltage sources as well as current sources ...


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