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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
What else can I help you with?
What are your resistance goals include which of the following?
focus on your authorized communications and resist providing a confession
What is the difference between generator over excitation versus under excitation when attached to the grid?
Over Excitation is a condition when the Excitation System is providing too much field current and as a result, the rotor of the generator will over heat. The Excitation System is equipped with an Over Excitation Limiter. This limiter acts to reduce the Excitation Current if this condition exists Underexcitation is a condition when the generator is not getting enough Excitation Current. If the generator does not get enough Excitation Current, it can be un-synchronized with the grid. We call this slipping a pole. If this occurs, the generator can be severely damaged. Kelly Thompson Engineering Lead Siemens Energy Alpharetta GA
What is reverse power of generator?
It is wise to start thinking of power in DC circuit. If a load is connected to a power source in a DC circuit, the corresponding VOLT CURRENT plot both will be in the positive quadrant. Of course, polarity must be correct. Now if the CURRENT (in the same polarity arrangement) happens to be in the negative quadrant, the power is said to be reversed. The same can be thought in an AC circuit. Taking a half wave cycle of both VOLT and CURRENT, one can apply the same understanding as in the DC circuit. If the AC circuit is capacitive or inductive, VOLT and CURRENT waves will be shifted according to the value of the capacitive or inductive load, and here one has to be aware. Adel Aljassar adel@al-jassar.net
What happens to electrical current as voltage is increased?
If everything else stays the same, power increases as EMF increases. (EMF is to volts as power is to watts.)EMF = Electromotive Force.AnswerPower is proportional to the square of the voltage. So, if you double the voltage, you'll quadruple the power... providing everything else stays the same!
How does lighting arrester working?
A lightning arrester (or lightning rod) works by providing a low resistance path to earth. This directs a lightning strike down the side of a building instead of it spreading through the electrical system.
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.
A complete circuit contains two parallel-connected devices and a generator for providing the electromotive force?
The whole question and answer wasn't provided. An examples is the voltage of the generator is 40V and the resistance of the first device is 12 ohms. To find the current of the first device you would divide 40V by 12 ohms and the answer would be 3.33A.
How effective is the stain resistance of this product?
The stain resistance of this product is highly effective, providing strong protection against stains.
The current in an electric current varies inversly as the resistance when the current is 25 amps the resistance is 16ohms What is the current when the resistance is 10ohms?
40 A -providing the voltage remains constant.
How can I hook a generator to my house?
To hook a generator to your house, you will need a transfer switch installed by a professional electrician. This switch allows you to safely connect the generator to your home's electrical system, providing power during outages. Be sure to follow all safety guidelines and local regulations when setting up a generator for your house.
What are the key features and benefits of a Powerstroke generator?
The key features of a Powerstroke generator include reliable power output, durable construction, and portability. The benefits of a Powerstroke generator include providing backup power during outages, versatility for various applications, and ease of use.
What are your resistance goals include which of the following?
focus on your authorized communications and resist providing a confession
How does a backfeeding generator work to provide power during an outage?
A backfeeding generator is connected directly to a home's electrical panel using a transfer switch. When there is a power outage, the generator automatically starts and sends electricity to the home through the panel, providing power to essential appliances and devices.
When do you know when a generator is working?
Depending on the type of generator, you can measure the voltage at the output. Assuming it's a regular 120 volt AC generator, the output should measure 120V AC. If it doesn't, you may have problems.
How can I adjust the resistance level on a stationary bike pedal to increase the intensity of my workout?
To increase the intensity of your workout on a stationary bike, adjust the resistance level by turning the resistance knob or pressing the resistance buttons on the bike console. Increasing the resistance level will make it harder to pedal, providing a more challenging workout for your muscles.
What are the benefits of installing a house backup generator?
Installing a house backup generator provides benefits such as ensuring continuous power during outages, protecting against food spoilage, maintaining home security systems, and providing comfort and convenience during emergencies.
If there is unreliable electric supply on construction site which is upsetting time frame what should project manager do?
Document. Provide a quote to someone for the cost of having a "stand by" generator available. If you are the one responsible for providing power, rent a generator until power becomes dependable.
