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Who invented resistors?

Updated: 9/13/2023
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Otis f.boykin invented resistors

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Q: Who invented resistors?
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How do you draw this you have three 20 ohm resistors available. how would you connect these three resistors to produce a 30 ohm equivalent you must use all three resistors?

2 in parallel (= 10 ohms) and the third in series.


When a 30.0-V emf device is placed across two resistors in series a current of 14.0 A is flowing in each of the resistors. When the same emf device is placed across the same two resistors in parallel?

There is insufficient information in the question to answer it. 30 volts generating 14 amperes means the two resistors have a total series resistance of 2.143 ohms. Since no relationship was stated, we don't know the value of the individual resistors. If the two resistors had the same resistance, the net parallel resistance would be 0.536 ohms, and a current of 56 amperes would flow.


Did the the total voltage across the resistors does not depend on the resistor value?

It depends on where and how the resistor is placed in a circuit. A string of series resistors will split the voltage across all them depending on their values. All of the resistors in parallel will have the same voltage across all of them no matter what their resistance is.


Choose true or falseIf all the resistors in a parallel sub-circuit have the same value the total current can be found by multiplying the current by the number of resistors?

False.


Does more current flow through a parallel circuit than a series circuit?

Two resistors in parallel are equivalent to a single component with a lower resistance than either of the pair. Two resistors in series are equivalent to a single component with a resistance equal to the sum of the pair, therefore a higher resistance. For a given potential difference, more current in total will flow through two resistors in parallel than through the same resistors in series.

Related questions

How is resistance useful in a toaster?

Resistors helped the people who invented the toaster by allowing them to control current in the appliances


What are those materials of resistors?

most of the resistors commonly used are carbon resistors


What is carbon composition resistors?

Carbon composition resistors are resistors that are made with carbon or graphite mixed with a binding material. It's one type of resistors among several. There are also carbon-film resistors and metal-film resistors. Out of all the resistors, carbon-film resistors have the greatest tolerances and changes to temperature fluctations. Thus, they are used in applications where precision isn't critical and where temperature will not change drastically.


How do you find the resistance of a series circuit with n identical resistors?

The total resistance of resistors in series is simply the sum of the resistance values of those resistors. If the resistors are identical, then you can multiply the resistance of one of them by the number of resistors in the circuit.


What is the advantage of film resistors over carbon resister?

Film resistors have lower noise than carbon resistors.


Two resistors are connected in parallel to a battery What must the votlage across these two resistors?

Both resistors will have the voltage of the battery.


What are Resistors wired in series?

Resistors are wired in series when they are connected in a line. The current flows through the resistors one after the other.


What is carbon composition?

Carbon composition resistors are resistors that are made with carbon or graphite mixed with a binding material. It's one type of resistors among several. There are also carbon-film resistors and metal-film resistors. Out of all the resistors, carbon-film resistors have the greatest tolerances and changes to temperature fluctations. Thus, they are used in applications where precision isn't critical and where temperature will not change drastically.


What are resistors that produce a straight line graph called?

Linear resistors


What are resistors and why are they used?

Resistors are like funnels, they restrict the flow of current.


Why resistors are connecting?

resistors are used to resist the flow of current in a circuit.......


What are resistors and what are they important?

Resistors are a material that resists the flow of electrons. The resistors are materials that resist electric current energy to be changed into other forms.