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(R) Resistance = (E) Voltage / (I) Current in Amperes

R = 12/3

R = 4 ohms

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What are the basic design requirements for a simple hydraulic or pneumatic device?

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What is the difference between 50N and 50G RELAYS?

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A device or circuit that provides power to the rest of the circuit or system is called what?

A device or circuit that provides power to the rest of the circuit or system is called a power supply,


What are the four main systems of a drilling rig?

The four main systems of a drilling rig are the drilling system, power system, circulating system, and well control system. The drilling system includes components for drilling the well, such as the drill bit and drilling string. The power system provides the necessary energy to operate the rig, including engines and generators. The circulating system manages the flow of drilling fluid, while the well control system ensures safety by managing pressure and preventing blowouts.

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Why do you need to measure ground resistance value?

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What is Warm reboot?

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What are the benefits of remote working system?

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What are the basic design requirements for a simple hydraulic or pneumatic device?

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How do you calculate absolute maximum current?

The absolute maximum current is used as part of a rating system, particularly for electronic components. It is a figure that a manufacturer will quote to indicate how much current can pass into or out of a device or a specific connection on the device. Exceeding that limit is likely to damage the device. The absolute maximum value is one that should never be exceeded but it is also normally higher than the maximum recommended current. The value is often measured during tests rather than calculated. The question might refer to the amount of current that might be drawn by a device. In this instance, to calculate the absolute maximum current that a device or component might draw there are two pieces of information needed. The first is the voltage that is applied to the device. The second is the lowest possible resistance that the device can have. Devices such as resistors, filament lamps and heaters have a constant resistance but active devices such as amplifiers, computers etc. can change resistance as they operate. It can be hard to find the resistance with some devices but once it has been established, Ohm's Law can be used to calculate the maximum current using the equation current = Volts divided by resistance. It is normally much easier to measure the current using an ammeter rather than trying to find the lowest resistance.


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