What is the current and what is the dissipated power

Assignment Help Physics
Reference no: EM13647943

A typical lightbulb in your house is rated 75 W, which means that the bulb dissipates 75 Wwhen connected to a DC voltage of 110 V.

a) What is the current?

b) If the voltage is reduced to 78 V,what is the dissipated power?

Reference no: EM13647943

Questions Cloud

Determinethe effective spring constant of the molecule : A molecule of DNA (deoxyribonucleic acid) is 2.30 µm long. The ends of the moleculebecome singly ionized -- negative on one end, positive on the other. The helical molecule acts as a spring and compresses 0.77% upon becoming charged.
What was the angular acceleration of the disk : A disk is initially at rest undergoes constant angular acceleration. After accelerating for 3.1 s, te disk hasturned to an angle of 120 degrees. what was the angular acceleration of the disk
Determine the electric potential energy of this group : Four identical charges (+2.9 μC each) are brought from infinity and fixed to a straight line. Each charge is 0.33 m from the next. Determine the electric potential energy of this group.
A river flows due south with a speed : A river flows due south with a speed of 2.0m/s. A man steers aboat across the river; his velocity relative to the water is 4.2m/sdue east. The river is 800m wide.
What is the current and what is the dissipated power : A typical lightbulb in your house is rated 75 W, which means that the bulb dissipates 75 Wwhen connected to a DC voltage of 110 V. What is the current?
What total current is supplied to the circuit : A lamp (R = 147 ), anelectric heater (R = 26),and a fan (R = 48 ) areconnected in parallel across a 115 Vline. what total current is supplied to the circuit? what is the voltage across the fan?
A revolutionary war cannon with a mass : A revolutionary war cannon, with a mass of 2270 kg, fires a 16.5 kgball horizontally. The cannonball has a speed of 137 m/s after it has left the barrel.When the cannon was free to move across the ground (ignorefriction), the velocity of the canno..
Assume the metals volume to remain constant : How much does the internal energy (in joules) of a block of metal change  (a) when 30 cal of heat is added to it and (b) when 60 cal of heat is taken away from it? Assume the metal's volume to remain constant.
Find velocity of block in center-of-mass reference frame : A 3.0 kg block is traveling in the -x direction at 5.0 m/s, and a1.0 kg block is traveling in the +x direction at 3.0 m/s. Find the velocity VCM of the center of mass. Subtract VCM from the velocity of each block to find the velocity of each block in..

Reviews

Write a Review

Physics Questions & Answers

  Find the magnitude of the resulting magnetic field

A sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere.

  Find the equivalent resistance

A resistor is in the shape of a cube, with each side of resistance  R . Find the equivalent resistance between any two of its adjacent corners.

  What is the electric field at the location

Question: Field and force with three charges? What is the electric field at the location of Q1, due to  Q 2 ?

  What is the maximum displacement of the bridge deck

What is the maximum displacement of the bridge deck?

  What is the magnitude of the current in the wire

What is the magnitude of the current in the wire as a function of time?

  Blackbody

Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.

  Gravity conveyor

Illustrate the cause of the components accelerating from rest down the conveyor.

  Calculate the dc voltage

Calculate the dc voltage applied to the circuit.

  Quadrupole moments in the shell model

Quadrupole moments in the shell model

  Determine the tension in each string

Determine the tension in each string

  Introductory mechanics: dynamics

Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.

  Evaluate maximum altitude

Evaluate maximum altitude?

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