Engineering High School

in a circuit 3resistor are connected in parallel R¹=10ohms R²=15ohms R³=30ohms 1. calculate total resistance 2. total current flow 3.voltge drop across each resistor 4.total dissipated by the circuit 5. power in the 15ohms​

Answers

Answer 1

I'll give you the formula to calculate the net resistance of multiple resistors I'm in parallel.

1/R = 1/R1 + 1/R2 +1/R3 +……+1/Rn.

Take the reciprocal of each resistor value and add them up. The reciprocal value of a resistor is called its admittance. Add them up to get the total admittance. Notice that this value is 1/R. So take the reciprocal by dividing 1 by the total admittance value. Then you have the net resistance for all the parallel resistors.

Now you know the total resistance of the parallel values, if there are any other resistors in series with this, add them on to get the total resistance in the circuit.

Now use Ohm's law to find the current.

I =V/R

1. paralel resistance

1/(1/10+1/15+1/30)= 30/6=5 Ohms

2. total current : V/R=24/5= 4.8A

Related Questions

Select the correct answer.
Read the quote.
"Why do most people choose to vacation in the mountains? Simply because the climate is perfect, and the sights are soothing."
Which rhetorical device does the speaker use?
emotional appeal
rhetorical question
metaphor
allusion

Answers

The rhetorical device the speaker used is: "emotional appeal" (Option A). Another word for this is called pathos.

What is pathos?

Pathos appeals to the audience's emotions and values, eliciting feelings that they already have. Pathos is a rhetorical term that is also employed in literature, film, and other forms of narrative art.

Pathos, or the appeal to emotion, is to persuade an audience by invoking specific emotions in order to make them feel the way the author wants them to feel. Authors utilize intentional wording, meaningful language, and examples and tales that elicit emotion.

Learn more about rhetorical devices:
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Answer:

rhetorical question

Explanation:

got 100%

Think of one example where heat and friction are good outcomes of a process or machine. Identify the
specific cause of friction in this process and the object(s) that becomes hotter as a result.

Answers

Answer:  1. rubbing your hands together to keep warm in winter

2. the parts of a car engine rubbing together causes it to overheat sometimes

3. rubbing sticks together to make fire (it takes about two hours, but the stick gets hot)

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