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What else can I help you with?
What devices typically use DC current to operate?
cell phones, laptops, desktops, anything that uses a battery. most power supplies convert AC to DC at a regulated voltage and current.
Which type of circuit is favored for operating several electrical devices each independently of other series or parallel?
parallel circuit .
A complete circuit contains two parallel-connected devices ana a generator for providing the electromotive force the resistance of the first device is 12 ohms the resistance of the second device is 4?
According to Ohm's law of resistance in parallel, 1/RT=1/R1+1/R2+1/R3... so 1/RT=1/12+1/4=1/12+3/12=4/12=1/3 and 1/(1/3)=3.The total resistance of the two devices is 3.There is a simpler special case formula for two resistances in parallel:* RTot = (R1R2) / (R1 + R2) In this case this it would give us (12 x 4) / (12 + 4), or 48 / 16 which equals 3 ohms.3 ohms
When you short out a resistor in a parallel circuit why does the current lower?
The total resistance of a set of resistors in parallel is found by adding up the reciprocals of the resistance values, and then taking the reciprocal of the total. By removing a resistor the total current will lower. If you short out the parallel circuit as suggested it will take out the fuse that should be protecting the circuit.AnswerShorting-out a resistor in a parallel circuit, will act to short out the entire circuit, therefore, significantly increasing, not lowering, the current! And, as the previous answer indicates, this short-circuit current will operate any protective devices, such as a fuse.In a parallel circuit current does not lower but it will be increase if shorting-out one resistor in the two resistor parallel circuit, the circuit will become very low resistive and the larger current will flow through the short path.
Advantages of parallel circuit?
A parallel circuit can run several devices using the full voltage of the supply, varying the current to the need of each device. If one device fails, the others will continue running normally. If the device shorts, the other devices will receive no voltage, preventing overload damage.A series circuit divides the supply voltage among the devices with a consistent current. If one device fails, all other devices in the circuit will either fail to receive voltage or receive too much voltage and become damaged in the case of a short.An advantage of parallel circuits is increasing the power rating of the circuit and reducing the resistance.
A circuit contains two devices that are connected in parallel if the resistance of one of these devices is 12 ohms and the resistance of the other device is 4 ohms the total resistance of the two devi?
The net effective resistance of the parallel devices is the reciprocal of (1/12 + 1/4). Hence 3 ohms.=============================================(Which actually looks strangely similar to the first answer above.Could it be just coincidence ? I wonder . . . )
How does connecting devices in parallel affect the electric current in a circuit?
it doesn't, the one with the highest resistance does
Why does the total circuit resistance decreases when more devices are added to a parallel circuit?
Does it? See Related Links
What supplies power to the motherboard and other installed devices?
The powersuply. In a laptop it might be the powersupply or the battery (when unplugged).
Are devices of home connected in series or in parallel?
Home devices are connected in parallel and not in series.
Example of parallel circuit?
All the light bulbs in your house are in parallel across the power line.All the devices plugged into a power strip are in parallel.Everything in your car that gets power from the 12V battery is in parallel.etc.
A complete circuit contains two parallel-connected devices and a generator for providing the electromotive force. The resistance of the first device is 12 ohms the resistance of the second device is 4?
The generator sees a resistive load of 3.0 ohms.
Which kind of circuit can run more components from 1 battery?
A parallel circuit can run more components from a single battery compared to a series circuit. In a parallel configuration, each component receives the full voltage of the battery, allowing them to operate independently. This setup also ensures that if one component fails, the others can continue to function. Additionally, parallel circuits can draw more current, which is beneficial for powering multiple devices simultaneously.
If the individual voltage of each load in a parallel circuit are equal to?
In a parallel circuit, the voltage across each load is equal to the source voltage. This means that if multiple devices are connected in parallel, each device experiences the same voltage. Consequently, regardless of the resistance of each load, they all receive the same voltage supply from the circuit. This characteristic allows devices to operate independently of each other.
What changes occur in the total resistance of a circuit as additional resistances are added in parallel?
The total resistance of the circuit increases. hence the new resistance after adding the resistance will be new resistance = old resistance + added Resistance There is a small mistake in the question. The second word is 'changes' not 'charges'
Can the internal resistance be negative?
No, internal resistance cannot be negative. In electrical systems, internal resistance represents the opposition to the flow of current within a device, such as a battery or capacitor, and is always a positive value. Negative resistance is a concept that can occur in certain non-linear devices, but it is not applicable to traditional internal resistance in passive components.
How do devices that are powered electricity works?
The devices increase resistance.
