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Find the current passing through each resistor in the circuit below. V1 = 14 V, V2 = 3 V, and V3 = 8 V.

1. Current passing through the 2-Ω resistor.

2. Current passing through the 4-Ω resistor.

3. Current passing through the 5-Ω resistor.

Which of the following rule was used to solve this problem? Choose all that apply.

1. Junction Rule
2. Loop Rule
3. Ohm's Law


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Coleen Amado
Coleen AmadoLv10
6 Nov 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

1) Which one of the following quantities remains constant for a given LC circuit?
a) the energy stored in the capacitor
b) the sum of the energy stored in the capacitor and that in the inductor
c) the energy dissipated in the circuit
d) the energy stored in the inductor
e)the energy stored in the current flowing in the circuit
 
2)Which of the following best describes the term forced oscillations?
a) oscillations that occur in the windings of the inductor within an RLC circuit
b) oscillations that occur at the natural frequency of the circuit
c) oscillations requiring an applied force
d) oscillations that occur within the battery of an RLC circuit
e) oscillations that occur at a frequency other than the natural frequency of the circuit
 
3)An alternating current is set up in an RLC circuit. For which of the following circuit elements are the current and voltage in phase?
a) inductor only
b) capacitor only
c) inductor, resistor, and capacitor
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4)For an RLC circuit in the limit of very high frequency, what is the effective behavior of the capacitor and the inductor in the circuit?
a) The inductor acts like a very small resistance and the capacitor acts like a very small resistance.
b) The inductor acts like a very large resistance and the capacitor acts like a very small resistance.
c) The inductor acts like a very small resistance and the capacitor acts like a very large resistance.
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5)Which of the following statements concerning resonance in an RLC circuit is true?
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b) At the resonant frequency, the rms current is at a maximum and the impedance is at a minimum.
c) At the resonant frequency, the rms current is at a minimum and the impedance is at a minimum.
d) At the resonant frequency, the rms current is at a maximum and the impedance is at a maximum.
 
6)In a well-designed transformer with an iron core, the secondary coil has twice as many turns as the primary coil. Which one of the following statements concerning this transformer is true?
a) The flux that passes through each turn of the primary coil is twice the flux that passes through each turn of the secondary coil.
b) This is a step down transformer because the current in the secondary coil is less than that in the primary coil.
c) This kind of transformer is typically used between a power transmission line and a residence.
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You are given a circular conducting wire loop with one
end cut out and connected to a resistor, R, as shown in
the figure to the right. A metal rod of length l is set at an
initial angle ?0 from the resistor, and then rotates
clockwise about the center of the wire loop with angular
frequency through a uniform magnetic field B
directed into the page. The metal rod stays in contact
with the wire loop at all points of its motion. Unless
otherwise requested, all answers should be in simplified
algebraic form using the above given variables.

(a) Given that the initial angle ?0 is in radians, what is theinitial area of the closed circuit “wedge”defined by ?0? (2pts.)
(b) What is the magnetic flux through this initial “wedge” areadefined by ?0? (2 pts.)
Starting at time t=0 at position ?0, the rod is rotated clockwisewith angular velocity as shown in
the figure. Given this configuration, answer questions (c)-(g)below:
(c) What is the direction of the induced magnetic field inside the“wedge”? (2 pts)
(d) What is the direction of the induced current around the closedcircuit? (2 pts)
(e) What is the magnitude of the induced emf, E in the circuit? (4pts)
(f) What is the magnitude of the induced current in the circuit? (4pts)
(g) What is the power used by the resistor? (4 pts)
(h) The metal rod is now rotated in the opposite direction, i.e. inthe counter-clockwise direction. Given this information, completethe chart below as to what quantities you just calculated change,and what ones do not change. You do not have to show work, justgive the result. No partial credit will be given here. (5pts)

Direction of induced magnetic field inside the “wedge”.
Direction of the induced current around the closed circuit.
Magnitude of the induced emf, E in the circuit.
Magnitude of the induced current in the circuit.
Power used by the resistor.


The setup is now modified slightly so that the circular conductingwire loop no longer has a small
section removed as shown in both figures below. This modificationwould allow the metal rod to
continuously rotate on the circular wire loop as clearlyillustrated in the 3D side view. The metal rod
is rotated clockwise, as in the initial part of the problem.


(i) Given this information, complete the chart below. You do nothave to show work, just give the
result. No partial credit will be given here. (5 pts)

Direction of induced magnetic
field inside the “wedge”.
Direction of the induced current
around the closed circuit.
Magnitude of the induced emf, E in
the circuit.
Magnitude of the induced current
in the circuit.
Power used by the resistor.

A pair of vertical conducting bars are placed in ahorizontalmagnetic field as shown below. A cross bar is placedbetween themand rolls freely on frictionless bearings. The bar hasmass mand length L and together with the rollers forms acompleteconducting loop. The total electrocal resistance (assumeconstant)of the circuit is modeled at the bottom as a singleresistorR.

1. Primary goal is to determine the velocity of the bar asafunction of time by following these steps:
a) Determine the current in the bar as a function ofthevelocity of the bar as it falls. Show direction of i.
b) Draw a FBD (free body diagram) for the bar andwriteNewton's 2nd law for this body.
c) Combine the results above to obtain a differentialequationfor the velocity.
d) Find the explicit function v(t). Find the expressionforthis velocity.
2. How long does it take for the bar to reach 90% oftheterminal velocity? What is the velocity at this time? Usethesevalues: B=0.15T, R=1.4Ohms, L=80cm, m=5.0g
3. Find the position function y(t). With this function andtheabove results, find the location of the bar and the current inthewire at the moment the bar reaches 90% of its terminalvelocity.Starting height of the bar is y=16m and t=0
Please someone help me solve this problem. I have a test attheend of the month and I really need help with these concepts.Thankyou! You will be a lifesaver!!!

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