CAN SOMEONE GIVE ME AND ANSWER AND EXPLANTION FOR ALL THESE QUESTIONS PLEASE, I AM STRUGGLING
1 answer:
Answer:
13.) 44V
14.) 66V
15.) 9A
16.) 12V
Explanation:
Concepts you need to know:
1. Resistors in series can be combined by summing up their values.
2. The current always stays the same when the resistors are in series.
3. Ohms Law:
13.) We know that the resistors are in series so we can combine them into a single big resistor. We got R₄ = R₃+R₂+R₁ = 2+4+5 = 11Ω.
We also know that current is the same in a series of resistors, so there's 4A going through the entire circuit.
Using ohm's law, we can calculate V = IR = (4)(11) = 44V
14.) Same explanation as part (13). Except now the current is I=6A. All we have to do is to replace the previous I=4 to I=6.
V = IR = (6)(11) = 66V
15.) Again, we know that current is the same when resistors are in series. So if you can find the current through R1 then that's the same current throughout the entire circuit.
We're given E₁=18V, so...
I = V/R = E₁/R₁ = 18/2 = 9A
this means 9A will also flow through R₃.
16.) Same concept as part (15). We know that E₃=15V, so lets find the current.
I = V/R = E₃/R₃ = 15/5 = 3A
Since current is same throughout the circuit, I₁=3A as well. Use this to calculate the voltage through R₁.
V = IR = I₁R₁ = (3)(2) = 6V
You might be interested in
Answer:
The distance between the station A and B will be:
Explanation:
Let's find the distance that the train traveled during 60 seconds.
We know that starts from rest (v(0)=0) and the acceleration is 0.6 m/s², so the distance will be:
Now, we need to find the distance after 25 min at a constant speed. To get it, we need to find the speed at the end of the first distance.
Then the second distance will be:
The final distance is calculated whit the decelerate value:
The final velocity is zero because it rests at station B. The initial velocity will be v(1).
Therefore, the distance between the station A and B will be:
I hope it helps you!