I need a little direction with this question:If someone could provide the correct formula, I think I divide each reistor by 12V but I'm not sure. To find total resistance, do I just add the reciprocals?

Three resistors connected in parallel have individual values of 4.0, 6.0 and 10.0 W, respectively. If this combination is connected in series with a 12.0 V battery and a 2.0 W resistor, what is the current in each of the resistors and what is the total resistance of the circuit?

a. 0.59 A

b. 1.0 A

c. 11.2 A

d. 16.0 A

1. 👍 0
2. 👎 0
3. 👁 250
1. Please irnore the multiple choice answers-they were for a different problem that I copied down

1. 👍 0
2. 👎 0
2. find total resistance of the parallel network. I assume you mean ohms, not watts on the reistors.

1/Rt=1/4+1/6+1/10=1/60 (15+10+6)=31/60
Rt=60/31

Now add that inseries to 2 ohm, or total resistance is 151/60
current= V/R=12(60/151) check that
now, having total current, how does it divide in the paralel branch.
the voltage across the parallel branch is Rt*It= 60/131*69/151)

so current in each resistor is that voltage divided by either 4,6, or 10 ohms

1. 👍 0
2. 👎 0
3. Thank you for your help-I can really use the explanation for my other problems too.
Thank you again-

1. 👍 0
2. 👎 0
4. I have another question-I looked closely at the explanation and when you added the three resistors together you came up with Rt=60/31. Then you added the series to the 2Ohm and said total equals 151/60-I'm lost there because 2 Ohms would equal 30/60 or when added to the inseries it would become resistance total = 60/61 so where does the 151/60 come from? Sorry if I'm just not understanding

1. 👍 0
2. 👎 0
5. I figured it out-thank you

1. 👍 0
2. 👎 0

Similar Questions

2. Technology

Which of the following is not an example of an Objective question? Multiple choice Essay True/false Matchingβ’β’ Why is it important to recognize the key word in an essay question? It will provide the answer to the essay It will

3. Physics

1. Question: Consider two planets with uniform mass distributions. The mass density and the radius of planet 1 are p1 and R1, respectively, and those of planet 2 are p2 and R2. What is the ratio of their masses? Ans: M1/M2 =

4. Statistical concept 68-95-99.7

1. A student taking a midterm exam in Ancient History comes to two questions pertaining to a lecture that he missed, and so he decides to take a random guess on both questions. One question is true-false and the other is multiple

1. chemistry lab

Here are 2 questions I worked out, but need them checked. Also, can't get answer to another question correct unless question 1 is correct. Would you check the first 2 and help me with the third? 1) What is the pH of a 0.05 M

2. math

Carmen is planning to invest \$2000 in an account earning 3.15% interest, compounded quarterly, for 5 years. He used the following formula and variables to solve for the future value of the account after 5 years. FV = PV(1 + i)^nt

3. physics

A driver of a car traveling at 16.7 m/s applies the brakes, causing a uniform deceleration of 2.5 m/s2. The first question is - How long does it take the car to accelerate to a final speed of 13.9 m/s? For this i got 1.12 and

4. Physics

If you disconnect the wires from the battery and then reconnect them at the opposite ends of the battery, how does that change the direction of the charge flow? The direction of the charge flow is the same as the question The

1. MATH

An airplane is flying in the direction 148Β° with an airspeed of u = 865 kilometers per hour. Because of the wind, its groundspeed and direction are v = 780 kilometers per hour and 140Β°, respectively (see figure in the link

2. probability

Let π and π be independent positive random variables. Let π=π/π . In what follows, all occurrences of π₯ , π¦ , π§ are assumed to be positive numbers. 1. Suppose that π and π are discrete, with known

3. Probability

Let π and π be independent positive random variables. Let π=π/π. In what follows, all occurrences of π₯, π¦, π§ are assumed to be positive numbers. 1. Suppose that π and π are discrete, with known PMFs,

4. Physics

Betty Bodycheck (mB = 55 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 45 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Immediately after the collision, Betty is