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A 20-V potential difference is applied across a seriescombination of a 10-Ω resistor and a 30-Ω resistor. The current inthe 10-Ω resistor is Question 19 op...

Question

A 20-V potential difference is applied across a seriescombination of a 10-Ω resistor and a 30-Ω resistor. The current inthe 10-Ω resistor is Question 19 options:a) 2 Ab) 0.5 Ac) 1 Ad) 0.67 AA 20-V potential difference is applied across a seriescombination of a 10-Ω resistor and a 30-Ω resistor. Thepotential difference across the 10-Ω resistor is Question 20 options:a) 10 Vb) 5 Vc) 20 Vd) 15 V

A 20-V potential difference is applied across a series combination of a 10-Ω resistor and a 30-Ω resistor. The current in the 10-Ω resistor is Question 19 options: a) 2 A b) 0.5 A c) 1 A d) 0.67 A A 20-V potential difference is applied across a series combination of a 10-Ω resistor and a 30-Ω resistor. The potential difference across the 10-Ω resistor is Question 20 options: a) 10 V b) 5 V c) 20 V d) 15 V



Answers

A 10 V battery is connected to two 5 W resistors in series. Separately, another 10 V battery is connected to two 5 W resistors in parallel. What is the difference between the total current produced in each circuit?
(A) 1 A
(B) 2 A
(C) 3 A
(D) 4 A

And this problem you have to resistors of five homes connected in Siri's and connect in parallel, and we are asked to fund the difference between the total current produced in each circuit. Well, in this first series circuit, my total resistance can be found by just adding my resistors together. So that gives me a total resistance of 10 homes and we can apply homes Law, which was equal to vehicles i r V being our voltage, divided by total resistance, gives me total current off one EMP for my current four of my two resistors in Siri's. And then, if I look at my resistors in parallel, these are added differently than resisted. In Siri's Sofer resistors in parallel, I actually have to add the inverse and then in verse that function so I can say one over five plus one over five gives me to over five. But that's not my final answer. That's equal to one over R, and I actually just want our p, my resistors, my total resistors in parallel, so I can inverse that to get a total resistance of 2.5 hopes. So, using same homes law, my total voltage divide it might buy my total resistance. So I have 10. Divided by 2.5 gives me a current off four EMS. So the difference between these the difference in temps three.

Hello and welcome to Chapter 18 Problem number 44 Holt Physics and this problem were given to unknown resistors A and B and two different scenarios. One where they're connected in series and one where they're connected in parallel and were asked to find the value of each of their resistance is so, uh, we're pretty much just gonna be using OEMs law and this and some properties of parallel and resistors and Syriza's well, so to start things off, we're gonna actually calculate Be first for ease. Since we have a current And we have Since A and B are in parallel here, we know that they have the same voltage, so we'll be able to really just jump right in it to find our first resistance resistant. To be Do that we isolate are are are in r V equals ir equation. So we have that split voltage between them to parallel components. Six volts this time, uh, over our current that we were given two amps so that I'll just give us our first resistance, be three owns. Now we're going to get a little more complicated because we need to take, uh, the information we gained this RB our resistance here. I need to apply that into our Ah, the first scenario here. So start things off. We know that the six volts has to be used in our entire circuit, so we're gonna have four volts. We know we were given that across a so we can just do simple voltage difference subtraction to find out that we have two volts across this Ah resistor be here. So I have that calculation just right off the bat down here. Up next, we're gonna dio is used vehicles ir again. But find the current running through our entire circuit here on. That's because resistors in series they have the same currents they do not in parallel. But in our case, in this first scenario, the same current running through a will be the same current running through B, and that will help us greatly. So to do that, we use that That's new Delta V for B r voltage across our big resistor on. We'll divide that by r resistor for be that we calculated up top of three amps of three OEMs. Excuse me. So we'll have a current of 2/3 of an amp running through our entire circuit, and so we're pretty much done. We just need to use vehicles ir again, but this time isolating for our A. So we'll do that down here we have our A is equal to the voltage difference across a divided by that currently just calculated so before over 2/3 to give us a total of six homes of resistance across a.

Hi In the given problem, there are four types of the circuit, each having the same source of voltage providing revolt. The first circuit is having two identical resistors, each having a resistance of two on joint in parallel with each other. The second circuit the similar circuit as that of this first one, but only difference is this is having three identical resistors in bad in it, each having our value of two home again. Now the third circuit is having the same source of voltage providing the world and having two resistors, identical resistors having two on each. But this time these two resistors are in series, and finally the fourth circuit is having the same source of voltage providing the world And having three identical resistors again. But in cities combination, each having to all the strength. Now we have to find the circuit in which there will be same voltage drop across the resistor. And for that purpose they know as we know, voltage remains the same. A cruise, a parallel combination, so as a parallel combination is only in the two circuits, 1st and 2nd. So we conclude the voltage. We will remain same in first and second circuit only. Thank you.

In this question, we want to select the correct statement that describes uh uh behavior or the characteristics for two parallel resistors. Okay, so this is what we have to parallel resistance two resistors in parallel and this is connected uh to a power supply. He and um so the correct statement would be Okay, so we know that the potential difference will be the same across each resistor. So the answer is going to be seen. Okay? We say that the potential difference across each resistor, it's the same. He that's the that's the characteristics of far electrical devices. That is that they are connected in parallel. Okay, Okay. So the answer is C. And that's all for this question.


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