lildelynngreenp8ucsw
lildelynngreenp8ucsw lildelynngreenp8ucsw
  • 02-12-2018
  • Physics
contestada

A 120 resistor a 60 ohm resistor and a 40 ohm resistor are connected in parallel to a 120 volt power source. what is the current running through the entire circuit?

Respuesta :

skyluke89
skyluke89 skyluke89
  • 12-12-2018

Answer:

6 A

Explanation:

First of all, we need to calculate the equivalent resistance of the circuit. The three resistors are connected in parallel, so their equivalent resistance is given by:

[tex]\frac{1}{R_T}=\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}=\frac{1}{120 \Omega}+\frac{1}{60 \Omega}+\frac{1}{40 \Omega}=\frac{3+2+1}{120 \Omega}=\frac{6}{120 \Omega}\\R_T = \frac{120}{6} \Omega[/tex]

And now we can use Ohm's law to find the current in the circuit:

[tex]V=R_T II=\frac{V}{R_T}=\frac{120 V}{\frac{120}{6}\Omega}=6 A[/tex]

Answer Link

Otras preguntas

Five angles are set at a point. The measurement of each angle is one of five consecutive whole numbers. Set up and solve the equation[s] needed to determine the
how did the feudal system work? (medieval life )
An object is traveling at a constant velocity of 12 m/s when it experiences a constant acceleration of 2.5 m/s2 for a time of 20s. What will its velocity be aft
What does the Send Backward icon allow a publisher to do?
can someone pleaseeee answer
What is the inverse of the statement below? x=y A. -x=y B. -у =-x C. -x = -у D. y=x
please help! need it asap !
Bus A and Bus B leave the bus depot at 6 am. Bus A takes 20 minutes to do its route and bus B takes 35 minutes to complete its route. At what time are they both
How much heat is needed to raise the temperature of 4 grams of water by 5 °C?
I'm not sure where to start plz help