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Fuses are used in circuits for one reason only. The fuses are there to protect the conductors from a higher than normal operating amperage.

Each type of conductor has a current limit set out by the electrical code book. If the circuit amperage gets over that limit, the fuse will open the circuit and remove the voltage source from the circuit.

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Electromotive force is usually provided by a what or what in an electric circuit?

it is usually provided by a battery or generator.


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What is prospective current?

Prospective current refers to the maximum electric current that can flow in a circuit during a fault condition, such as a short circuit. This value is crucial for designing electrical systems, as it helps ensure that protective devices, like circuit breakers and fuses, are appropriately rated to handle potential fault scenarios. It is calculated based on the system's characteristics, including the source impedance and the configuration of the circuit. Proper analysis of prospective current is essential for maintaining safety and reliability in electrical installations.


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Do all currents provide the same amount of energy?

Of course not! There is no direct relationship between electric current and electric energy. They aren't even measured in the same units. Also in most cases small electric currents provide less electric energy that very large electric currents. If all electric currents provided the same electric energy then the electric current from a flashlight battery that lights the bulb when you turn the switch on could provide the same electric energy as the electric current in a lightning bolt when it strikes... therefore every time you turned on a flashlight the electric energy would destroy the flashlight and electrocute you! As this doesn't happen, the only answer that your question can have is no!

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What is the verb in this sentence Towns in a wide area are provided with electric power?

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