EARTH SCIENCE
MAGNETISM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Electrical devices
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Power source
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The wire
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None of the above
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Detailed explanation-1: -In most circuits, the moving charged particles are negatively charged electrons that are always present in the wires and other components of the circuit. The battery pushes the electrons in a circuit.
Detailed explanation-2: -This force is called electromotive force, EMF, or voltage (V). Sometimes it is convenient to think of EMF as electrical pressure. In other words, it is the force that makes electrons move in a certain direction within a conductor.
Detailed explanation-3: -The “electrical pressure” due to the difference in voltage between the positive and negative terminals of a battery causes the charge (electrons) to move from the positive terminal to the negative terminal.
Detailed explanation-4: -In a complete circuit, the electrons flow from the negative terminal (connection) on the power source, through the connecting wires and components, such as bulbs, and back to the positive terminal.