Physics, 14.11.2019 12:31 AriyaSeifert

Find the equivalent resistance and the current in each resistor

Answers: 3

Show answers

Answers

Answer from: thatcommondumbgirl

Equivalence resistance: 3 Ω.

Current:

12.0 A in the 1.00 Ω and the 3.00 Ω resistor;4.00 A in the 7.00 Ω and the 5.00 Ω resistor.

Explanation:

Equivalent Resistance

The 1.00 Ω resistor and the 3.00 resistor are in series. Add their resistance up to find the equivalent resistance of the upper branch:

$1.00\;\Omega + 3.00 \;\Omega = 4.00\;\Omega$ .

Try the same steps for the lower branch. The equivalent resistance of the 7.00 Ω resistor and the 5.00 Ω resistor in series is 12.00 Ω.

The upper and lower branch are in parallel. Take the reciprocal of the resistance of each branch. Add the two reciprocals to each other. The equivalent resistance of the two branches will be the reciprocal of the sum. In other words, the equivalent resistance of resistors R_1 and R_2 in parallel will be:

$\dfrac{1}{\dfrac{1}{R_1}+\dfrac{1}{R_2}}$ .

For the upper and lower branches in this question, the equivalent resistance will be

$\dfrac{1}{\dfrac{1}{4.00}+\dfrac{1}{12.00}} = 3.00\;\Omega$ .

Current in each Resistor

The internal resistance of the power supply is 0. As a result, the voltage across the two parallel branches is 48.0 V, the same as the EMF. Since the two branches are connected in parallel, the voltage across both branch will be 48.0 V.

The two resistors in each branch are in series. The current that flows into each branch is the same as the charge that flows out. As a result, the current through the each resistor in a branch will be the same as the current through the entire branch. In other words,

Current in the 1.00 Ω Resistor

= Current in the 3.00 Ω Resistor

= Current in the upper branch

= $\displaystyle \frac{V}{R} = \frac{48.0}{4.00} = 12.0\;\text{A}$ .

Try these steps to find the current in the two resistors in the lower branch:

$\displaystyle I_\text{lower}=\frac{V}{R} = \frac{48.0}{12.00} = 4.00\;\text{A}$ .

Answer from: Quest

Honestly "global warming" may be a slight possiblity, however they called it "climate change" because its not real, in fact we had one of our coldest days here not too long ago, and the "issues" with this subject is a blindfold for actual problems.

Answer from: Quest

This is kenetic energy.

Another question on Physics

Physics, 21.06.2019 19:30

A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?

Answers: 1

Answer

Physics, 22.06.2019 05:40

Karen is running forward at a speed of 9 m/s. she tosses her sweaty headband backward at a speed of 20 m/s. the speed of the headband, to the nearest whole number relative to a stationary observer watching karen

Answers: 1

Answer

Physics, 22.06.2019 06:00

Ineed the answer to question 1 , i’m desperate

Answers: 3

Answer

Physics, 22.06.2019 19:40

Uranium has two naturally occurring isotopes. 238u has a natural abundance of 99.3% and 235u has an abundance of 0.7%. it is the rarer 235u that is needed for nuclear reactors. the isotopes are separated by forming uranium hexafluoride uf6, which is a gas, then allowing it to diffuse through a series of porous membranes. 235uf6 has a slightly larger rms speed than 238uf6 and diffuses slightly faster. many repetitions of this procedure gradually separate the two isotopes. what is the ratio of the rms speed of 235uf6 to that of 238uf6? express your answer to five significant figures.

Answers: 3

Answer

You know the right answer?

Find the equivalent resistance and the current in each resistor
...

Questions