Answered: A 100-Ω resistor, R1, and a 300-Ω…

A 100-Ω resistor, R1, and a 300-Ω resistor, R2, are in parallel across a dc voltage source. Which resistor dissipates more power?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 14CQ: The power dissipated in a resistor is given by P = V2/R, which means power decreases if resistance...

See similar textbooks

Related questions

Q: (7) Calculate the angle incidence A light ray passing from medium acetone into air is shown to have…

Q: 1. Stick Guy wired his stationary bicycle to an AC generator with a 250-turn coil, and a large…

A: See below

Q: Describe your approach to the calculation of the period of a satellite moving in the gravitational…

Q: A ray of light is incident from air (n = 1) onto crown glass (n = 1.5). Which of the scenarios…

Q: If the electric field on the surface of this non-uniform conductor varies from 2x103 N/C to 5x103…

Q: 1. You pluck on a guitar string. The standing wave created has these boundary conditions: A. Both…

A: The boundary conditions of a standing wave on a guitar string depend on how the string is fixed at…

Q: The figures below show either open-open tubes or open-closed tubes. The red lines indicate the…

A: Below diagram shows open and closed pipe with red lines (standing wave with pressure wave )

Q: Write down an expression for the net force along the (tangentially to) arc of motion on a simple…

Q: Within the green dashed circle shown in the figure below, the magnetic field changes with time…

Q: Write down an expression for the highest order m of diffraction in a double slit experiment if the…

A: Distance between the slits =a slits are illuminated with the light of the wavelength λ.

Q: 31. A body moves on a coordinate line such that it has position s(t)=-on the interval [1,3] where s…

A: position s(t)=9t2-3t time interval t=[1,3]

Q: Write down an expression for the width of the central bright line on a screen in the single slit…

A: We want to write an expression for the width of the central bright line on a screen in the single…

Q: Using Newton's 2nd law and Hooke's law write down an expression for acceleration a of a mass m on a…

Q: Draw the electric field lines surrounding two negative electric charges, -5.0 mC and -10.0 mC, which…

Q: The ammeter shown in the figure below reads 2.80 A. Find the following. 15.0 V 7.00 Ω www (a)…

A: current is given as : I=2.80A.

Q: A man throws a stone from the top of a building 164 m above the ground. Its initial velocity = 43.3(…

A: Write the given values with the suitable variables. h=164 mu=43.3 m/sθ=30° Here, h, u, and θ are the…

Q: A region of space contains a magnetic field pointing straight up along the surface of the page. A…

Q: Light from a laser strikes a diffraction grating that has 5 302 grooves per centimeter. The central…

A: Given Separation between the central and first-order maxima is d=0.488 m Distance of the wall from…

Q: A bench is made by placing a 3.4 meter long plank on two legs, each 0.1 meters from one of the…

Q: An ideal Heat Engine is determined to have an efficiency of 21.7% and a power output of 139kW. How…

A: Write the given values with the suitable variables. η=21.7%=0.217Po=139 kW Here, η and Po are the…

Q: Calculate the force on a rod of length 5 m carrying current of 3 A in the magnetic field of 4 T…

Q: .4 A ball with a weight of 40 N is falling freely toward the surface of the moon. What force does…

A: Given : Weight of the Ball , W = 40N

Q: When a particle is located x meters from the origin, a force of x2 + 3x kg acts on it. How much…

Q: A hydrogen atom is excited from its ground state to the n4 state. The atom subsequently emits three…

A: Write the expression for the Rydberg equation and substitute the corresponding values to calculate…

Q: If the tubular shaft is made from material having an allowable shear stress of Tallow=85 MPa,…

Q: Forces with magnitudes of v= 140 newtons and u= 285 newtons act on a hook (see figure). The angle…

Q: The maximum electric field 9.7 m from a point light source is 2.3 V/m. What are (a) the maximum…

Q: (a) A symphony is being broadcast live over the radio. There is a microphone at the center of the…

A: According to the guidelines, when multiple different questions are given then, only the first…

Q: A sphere with a charge of -2.9 C hangs from a string that is attached to a positively charged plate.…

Q: You place a crate of mass 38.8 kg on a frictionless 2.20-meter-long incline. You release the crate…

Q: Blocks A (mass 3.50 kg) and B (mass 9.00 kg) move on a frictionless, horizontal surface. Initially,…

Q: Unpolarized light with intensity 1.25 kW/m^2 passes through a horizontally oriented polarizer. The…

A: When an unpolarized light is incident on a polarizer, the intensity of the transmitted light is…

Q: A mass of 2.8 kg is attached to a spring with the spring constant 30.0 N·m-1 and is placed on a…

A: Mass=2.8kg Spring constant=30N.m-1 Compression =0.03m

Q: A 0.600-kg object attached to a spring with a force constant of 8.00 N/m vibrates in simple harmonic…

Q: Suppose the oscillatory motion of an object can be modeled using the equation s(t) = 3.1sin(8.5t)…

A: The equation of the oscillatory motion is. st=3.1sin8.5t…

Q: A 5.50 cm tall object is 24.0 cm from a concave mirror with f = 20.0 cm. Find the image height.…

A: A concave mirror with focal length is 20cm So, f=-20cm

Q: You are standing 2 m in front of your plane bathroom mirror which hangs on the wall. How far away is…

A: When you stand 2 meters in front of the plane bathroom mirror, the light rays from your body reflect…

Q: The I vs t graph shown below is for an LR circuit with a battery. 1(A) 3 2 1. 18 27 36 45 54 63 72…

A: Variation of current in L-R circuit is I=Imax(1-e-tτ)......(1) Where, τ=LR, time constant. From…

Q: A coaxial cable consists of alternating coaxial cylinders of conducting and insulating material.…

A: Write the expression for the Ampere circuital law and substitute the corresponding expression to…

Q: Consider a non-rotating space station in the shape of a long thin uniform rod of mass 6.76 x 10^6 kg…

Q: Calculate the force F that we must pull with and the work A that we do to move it to its final…

Q: Calculate the escape velocity to an orbit of 393 km height from a planet with the radius of 2000 km…

A: Mass of object =393kg Radius =2000km Density =3400 kg.m-3

Q: The intensity of sunlight near the surface of the Earth is approximately 1.00 x 10³ W/m². What would…

Q: If the electric field on the surface of a randomly shaped conductor varies between 2x103 N/C and…

Q: In the figure, four long straight wires are perpendicular to the page, and their cross sections form…

A: See below

Q: The figure below shows an object (black arrow) in front of a convex mirror. How would the image…

A: From the given figure, it is noted that by the characteristics of convex lens the image will be…

Q: Select the correct expression for the force on a current currying wire in magnetic field. a. FI-BL…

A: F - Force I - Current L - Length of the wire B - Magnetic field

Q: A pair of narrow, parallel slits separated by 0.240 mm is illuminated by green light (2 = 546.1 nm).…

A: slit separation, d = 0.240 mm wavelength, λ = 546.1 nm = 546.1 x 10-9 m Distance of screen from…

Q: Consider a fluid with uniform density 2600 kg/m3 within a large container. At a distance of 15 cm…

A: density of fluid, ρ = 2600 kg/m3 Depth, h = 15 cm acceleration of gravity =10 m/s2

Q: -0.2 m- 38 N O50 N O 7.5 N 50° A 3 kg uniform shelf is supported by a bracket as shown. What force…

A: Draw the free-body diagram of the system.

Question

A 100-Ω resistor, R1, and a 300-Ω resistor, R2, are in parallel across a dc voltage source. Which resistor dissipates more power?

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: Concept

VIEW

Step 2: Substituting value of R1 and R2

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 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

The values of the components in a simple series RC circuit containing a switch (Fig. P21.53) are C = 1.00 F, R = 2.00 106 , and = 10.0 V. At the instant 10.0 s after the switch is closed, calculate (a) the charge on the capacitor, (b) the current in the resistor, (c) the rate at which energy is being stored in the capacitor, and (d) the rate at which energy is being delivered by the battery.
In this chapter, most examples and problems involved direct current (DC). DC circuits have the current flowing in one direction, from positive to negative. When the current was changing, it was changed linearly from I=ImaxtoI=+Imax and the voltage changed linearly from V=Vmax to V=+Vmax where Vmax=ImaxR .Suppose a voltage source is placed in series with a resistor of R = 10 that supplied a current that alternated as a sine wave, for example, I(t)=(3.00A)sin(24.00st) . (a) What would a graph of the voltage drop across the resistor V(t) versus time look like? (b) What would a plot of V(t) versus I(t) for one period look like? (Hint: If you are not sure, try plotting V(t) versus I(t) using a spreadsheet.)
The power dissipated in a resistor is given by P = V2/R, which means power decreases if resistance increases. Yet this power is also given by P = I2R, which means power increases if resistance increases. Explain why there is no contradiction here.
Consider a series RC circuit as in Figure P18.35 for which R = 1.00 M, C = 5.00 F, and = 30.0 V. Find (a) the time constant of the circuit and (b) the maximum charge on the capacitor after the switch is thrown closed. (c) Find the current in the resistor 10.0 s after the switch is closed. Figure P18.35 Problem 35 and 38.
A 2.00- and a 7.50-F capacitor can be connected in series or parallel, as can a 25.0- and a 100k resistor. Calculate the four RC time constants possible from connecting the resulting capacitance and resistance in series.
Figure P29.60 shows a simple RC circuit with a 2.50-F capacitor, a 3.50-M resistor, a 9.00-V emf, and a switch. What are a. the charge on the capacitor, b. the current in the resistor, c. the rate at which the capacitor is storing energy, and d. the rate at which the battery is delivering energy exactly 7.50 s alter the switch is closed?
Integrated Concepts If you wish to take a picture of a bullet traveling at 500 m/s, then a very brief flash of light produced by an RC discharge through a flash tube can limit blurring. Assuming 1.00 mm of motion during one RC constant is acceptable, and given that the flash is driven by a 600F capacitor, what is the resistance in the flash tube?
In a series RC circuit shown, the switch is closed and after a short time, the charge q on the capacitor is 5.2 x 10-5 C. What is the current in the resistor at this time?
You connect a completely discharged 10-μF capacitor and a 40-ohm resistor to a DC power supply of 48 v. What is the charge on the capacitor 55 msec later? a) 358.6 μC b) 480 μC c) 121.4 μC d) none of these.
In the figure, three resistors are connected to a voltage source so that R2 and R3 are in parallel with one another and that combination is in series with R1. Calculate I3 using the potential and resistances given in the figure.
4.0 Ω resistor is connected in parallel with a 12 Ω resistor and both of these are connected to a DC power supply with voltage V as shown below. If the total current I in this circuit is 6.0 A, what is the current through the 4.0 Ω resistor?
To get the maximum current, the connection should be in parallel. If you create a parallel connection with 30V DC source and three resistors with R1 = 50Ω, R2 = 75Ω, and R3 = 100Ω, how do you calculate for the total current (IT) and the current flowing in each resistor (I1, I2, I3), and the total voltage (VT) and the voltage across each resistor (V1, V2, V3)? How do you also determine the power dissipated by each resistor (P1, P2, P3) and by the whole circuit (PT)??