Power dissipated as heat and light

Assignment Help Physics
Reference no: EM13556879

Common light bulbs are designed for use with120 V and are rated by the power dissipated as heat and light.

a. What is the resistance of a 40W bulb?

b. What is the resistance of a 60 W bulb?

c. If the 40 W bulb is connected in serieswith the 60 W bulb and 120V is applied across the combination, then what is the power dissipated ineach?

Reference no: EM13556879

Questions Cloud

What is their common angular speed : In a double-star system, two stars of mass 6.0 *10^30 kg eachrotate about the system's center of mass at a radius of 2.0 * 10^11m. What is their common angular speed?
Determine height at highest point in air : A snowboarder hits end of jump at speed of 14.0 m/s. The boarder is traveling at 13.) mi/s at highest point of jump. Determine height at highest point in air
What should be the radius of curvature of the cornea : In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, What should be the radius of curvature of the cornea
Two trains have sirens that emit a frequency : When at rest, two trains have sirens that emit a frequency of 300Hz. The trains travel toward one another and toward an observer stationed between them. One of the trains movesat 26.0 m/s, and the observerhears a beat frequency of2.6 beatsper seco..
Power dissipated as heat and light : Common light bulbs are designed for use with120 V and are rated by the power dissipated as heat and light. What is the resistance of a 40W bulb?
Scattering of helium nuclei from gold nuclei. : In 1911 Rutherford discovered the nucleus of an atom by observing the scattering of helium nuclei from gold nuclei.
Determine speed when the rocket enters a state of freefall : A two-stage rocket accelerates from rest at +3.27 m/s^2 for 6.82seconds. It then accelerates at +2.98 m/s^2 for another 5.90seconds. After the second stage, it enters into a state of freefall.
A system consists of two positive point charges : A system consists of two positive point charges, q1 and q2>q1. The total charge of the system is +62.0 μC and each charge experiences an electrostatic force of magnitude 85.0 N when the separation between them is .270 m. Find q1 and q2.
A violent rainstorm dumps : A violent rainstorm dumps 0.9 cm of rainon a city 3 km wide and 6 km long in a 2 h period. How many metric tons (1 ton= 103 kg) of water fell on the city?

Reviews

Write a Review

Physics Questions & Answers

  What is the distance between the slits

Light of 550nm is incident on two slits. A maximum is seen at an angle of 4.10 degrees and a minimum at 4.78 degrees. What is the distance between the slits

  Direction of the electric field along positive zsemi-axis

What is the direction of the electric field along the positive zsemi-axis (vertical) if the field is created by: a uniformly charged circle in the x-y plane with the center atthe origin; a uniformly positively charged wire along the x axis;

  Q a woman walks 252 m in the direction 650deg east of north

q. a woman walks 252. m in the direction 65.0deg east of north then 212. m directly east.a find the final displacement

  At what distance from the objective lens does a real image

A microscope has an objective lens with a focal length of 14.0mm . A small object is placed 0.90mm beyond the focal point of the objective lens. At what distance from the objective lens does a real image of the object form

  What is the late-night decibel level

A thin 320g disk with a diameter of 5.20 cm rotates about an axis through its center with 0.705J of kinetic energy. What is the speed (in m/s) of a point on rim.

  Q1 an electron starts from rest 755 cm from a fixed point

q1. an electron starts from rest 75.5 cm from a fixed point charge with q -0.150 microc. how fast will the electron be

  What is the angular speed of the disk

A 20-kg rotating disk of radius 0.30m has an angular momentum of 0.40kg?m2/s. What is the angular speed of the disk

  Determine the current in register

While taking photographs in Death Valley on a day when the temperature is 58.0°C, What current does he register there if the temperature is -88.0°C

  Determine the exit area of the nozzle

Steam enters a nozzle operating at steady state with p = 40 bar and T =400oC, and a velocity of 10 m/s. Determine the exit area of the nozzle

  Determine how many photons per unit time are emitted

An FM radio station of frequency 96.7 MHz puts out a signal of 29900 W. How many photons per unit time are emitted

  What is the minimum thickness of the film

What is the minimum thickness of the film. what is the magnitude of the average acceleration of the ball through out this time interval.

  What is the acceleration of the center of mass

A solid uniform disk of mass M = 8.8 kg and radius R = 21 cm rests with its flat surface on a frictionless table (i.e., the axis of the cylinder is perpendicular to the table.) The diagram shows a top view. A string is wrapped around the rim of th..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd