When electric current in a circuit reaches a junction, it divides. What is the key physics that determines how much current follows each of the possible parallel paths? In other words, what is the key physics that underlies the statement "current follows the path of least resistance"? 2nd Law of Thermodynamics Newton's 3rd Law Conservation of charge Conservation of energy Least Square Rule Right hand rule O 000 0 O

When electric current in a circuit reaches a junction, it divides. What is the key physics that determines how much current follows each of the possible parallel paths? In other words, what is the key physics that underlies the statement "current follows the path of least resistance"? 2nd Law of Thermodynamics Newton's 3rd Law Conservation of charge Conservation of energy Least Square Rule Right hand rule O 000 0 O

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter7: Electricity

Section: Chapter Questions

Problem 6C

See similar textbooks

Related questions

Q: Which of the following graphs represents Ohm's law for a solid conductor at the constant…

A: Option (B) is correct.

Q: For the circuit shown in Figure 4, determine the total current supplied by the source and the value…

A: In the given circuit, for voltage V3, the resistors 2Ω and 3Ω are parallel. Hence the equivalent…

Q: Three lamps were connected in a circuit with a battery of constant voltage. The current, voltage,…

Q: In a circuit with just a battery and a resistor, which of the graphs shown below could represent the…

Q: During an electricity investigation, a student stated, “When the voltage increases current…

A: Given data: When the voltage increases current increases Required: The equation that describes the…

Q: An electric oven has a resistance of 50.0 Q and a voltage of 220 V. How much current does it draw? O…

A: We know that the current is given as I = V/R. Here, V = 220 V R = 50 Ohm

Q: Consid 30 38 20 wwwwwww ύξ σας,003, ΞΑΠ 014 W 28 W 30 052 W 0112 W

Q: When current i flows through a resistor R. Which statement is correct and why? Electrical…

A: The resister will be heated.

Q: What is the total current for the circuit? (±)2v +v1 12 V 10 R1 R2 R3 R4 R5 R6 20 30 40 50 60

A: Given, Many resistors in circuit

Q: The graph shown in the figure shows the results of measurements of the dc current through a circuit…

Q: In the circuit shown in the diagram below, two thick copper wires connect a battery to a nichrome…

A: Given:Lc = 10 cm = 0.1 mLn=5cm = 0.05mEc=0.040 V/mEn=17 V/m

Q: A resistor of 9 ohms is carrying a current of 4 amperes. What is the voltage that would be…

A: Given data: Resistance (R) = 9 Ω Current (I) = 4 A Required: Voltage (V)

Q: A total of 7.9 x 10¹2 electrons move past a point in a wire every 1.45 s. What term best describes…

Q: For the circuit in the picture find the equivalent resistance in Ohms. All the resistances are…

A: R1 = 30, R2 = 5, R3 = 10 , R4 = 20, R5 = 10, R6 = 30 All values are in units of ohms

Q: How many electrons will flow through an appliance for each second if the current through the…

Q: 10 Ω 6 V 10 V 27 N 4 V 43 N Find the direction of the current flowing in the circuit shown in the…

Q: A simple circuit contains a 12 V battery and a light bulb with a resistance of 40 2. What is the…

A: Q17. Given Data: The volatge of the battery is: V=12 V The resistance of the light bulb is: R=40 Ω

Q: Question #11. A voltage of 10V is supplied in the circuit as shown in the diagram. Calculate the…

Q: Three resistors and a 12 V power source are connected as shown in the circuit diagram below. What is…

Q: In the following Figure, R1=0.5 Ohm, R2=0.5 Ohm, and R3=5 Ohm. The current through R2 is 4.00 A.…

A: Given: From figure Resistance R1 = 0.5 ohm Resistance R2 = 0.5 ohm Resistance R3 = 5 ohm The current…

Q: A circuit is created using a battery and 3 identical resistors, as shown in the figure. Each of the…

Q: Three resistors and two batteries are connected as shown in the circuit diagram. 10 3V 10 0 10 What…

Q: In the circuit shown in this figure, what is the voltage V₁? 2.5 mA O Vo = 2.5 V O Vo = 4 V O Vo =…

A: In a parallel connection, the voltage across the parallel legs is the same. The figure for the…

Q: Three resistors and two batteries are connected as shown in the circuit diagrar

A: We know that three here three resistors and two batteries are connected as in the figure KVL in…

Q: In the circuit shown in this figure, what is the voltage V₁? BV O Vo = 3 V O Vo = 1 V O Vo=4V O Vo =…

A: Given a circuit with four resistors as R1=5 kΩ R2=11 kΩ R3=13.5 kΩ R4=10.5 kΩ A voltage source Vs=8…

Q: A 3.5-A current is maintained in a simple circuit with a total resistance of 1500 W. What net…

A: Current in the circuit I = 3.5 A Total resistance R = 1500 Ω Time interval Δt = 30 sec

Question

100%

When electric current in a circuit reaches a junction, it divides. What is the key physics that determines how much current follows each of the possible parallel paths? In other
words, what is the key physics that underlies the statement "current follows the path of least resistance"?
2nd Law of Thermodynamics
Newton's 3rd Law
Conservation of charge
Conservation of energy
Least Square Rule
Right hand rule
O 00 00 O

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

A defibrillator sends approximately 0.1 C of charge through a patients chest in about 2 ms. The average voltage during the discharge is approximately 3,000 V Compute the average current that flows, the average power output, and the total energy consumed (Note: Only a small portion of this current actually flows through the heart in a typical fibrillating procedure. Much of the charge is diffused throughout the patients thoracic cavity).
Check Your Understanding Handheld calculators often use small solar cells to supply the energy required to complete the calculations needed to complete your next physics exam. The current needed to run your calculator can be as small as 0.30 mA. How long would it take for 1.00 C of charge to flow from the solar cells? Can solar cells be used, instead of batteries, to stall traditional internal combustion engines presently used in most cars and trucks?
A 1,00-?O voltmeter is placed in parallel with a 75.0kresistor in a circuit, (a) Draw a circuit diagram of the connection, (b) What is the resistance of the combination? If the voltage across the combination is kept the same as it was across the 75.0-kresistor alone, what is the percent increase in current? (d) If the current through the combination is kept the same as it was through the 75.0-kresistor alone, what is the percentage decrease in voltage? (e) Are the changes found in parts (c) and (d) significant? Discuss.
The following statements are related to household circuits and electrical safety. Determine whether each statement is true (T) or false (F). (a) Circuit breakers are wired in series with the outlets they protect. (b) A circuit breaker rated at 20 A provides a constant current of 20 A to each outlet in the circuit. (c) Three-wire electrical cords help prevent dangerous electrical shocks by grounding the case of a device.
When a straight wire is heated, its resistance changes according to the equation R = R0 [1 + (T T0)] (Eq. 17.7), where is the temperature coefficient of resistivity. (a) Show that a more precise result, which includes the length and area of a wire change when it is heated, is R=R0[1+(TT0)][1+(TT0)][1+2(TT0)] where is the coefficient of linear expansion. (See Topic 10.) (b) Compare the two results for a 2.00-m-long copper wire of radius 0.100 mm, starting at 20.0C and heated to 100.0C.
A 20.00-V battery is used to supply current to a 10-k resistor. Assume the voltage drop across any wires used for connections is negligible, (a) What is the current through the resistor? (b) What is the power dissipated by the resistor? (c) What is the power input from the battery; assuming all the electrical power is dissipated by the resistor? (d) What happens to the energy dissipated by the resistor?
(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . Six resistors, all having the same temperatures and compositions, are each attached to a battery with voltage V to form a simple circuit. The resistors have different lengths, l, but the same diameters. Rank the circuits according to the current that flows through the resistor from smallest to greatest. If two (or more) circuits have the same current flowing, give them the same ranking. Explain the rationale you used to establish your rankings. Circuit 1: l = 2 cm; V = 3 V Circuit 2: l = 2 cm; V = 6 V Circuit 3: l = 1 cm; V = 3 V Circuit 4: l = 1 cm; V = 6 V Circuit 5: l = 3cm; V = 2 V Circuit 6: l = 3cm; V = 6 V
Construct Your Own Problem Consider an electric immersion heater used to heat a cup of water to make tea. Construct a problem in which you calculate the needed resistance of the heater so that it increases the temperature of the water and cup in a reasonable amount of time. Also calculate the cost of the electrical energy used in your process. Among the things to be considered are the voltage used, the masses and heat capacities involved, heat losses, and the time over which the heating takes place. Your instructor may wish for you to consider a thermal safety switch (perhaps bimetallic) that will halt the process before damaging temperatures are reached in the immersion unit.
A Van de Graaff generator (see Fig. 25.23) is operating so that the potential difference between the high-potential electrode and the charging needles at is 15.0 kV. Calculate the power required to drive the belt against electrical forces at an instant when the effective current delivered to the high-potential electrode is 500 A. Figure 25.23 Schematic diagram of a Van de Graaff generator. Charge is transferred to the metal dome at the top by means of a moving belt.
Construct Your Own Problem Consider a person working in an environment where electric currents might pass through her body. Construct a problem in which you calculate the resistance of insulation needed to protect the person from harm. Among the things to be considered are the voltage to which the person might be exposed, likely body resistance (dry, wet, ...), and acceptable currents (safe but sensed, safe and unfelt, ...).
A ski resort consists of a few chairlifts and several interconnected downhill runs on the side of a mountain, with a lodge at the bottom. The lifts are analogous to batteries, and the runs are analogous to resistors. Describe how two runs can be in series. Describe how three runs can be in parallel. Sketch a junction of one lift and two runs. One of the skiers is carrying an altimeter. State Kirchhoffs junction rule and Kirchhoffs loop rule for ski resorts.
When resistors with different resistances are connected in series, which of the following must be the same for each resistor? Choose all correct answers. (a) potential difference (b) current (c) power delivered (d) charge entering each resistor in a given time interval (e) none of those answers