What is the internal resistance of the battery

Assignment Help Physics
Reference no: EM13667237

A battery powers some DC circuit. When the current is 40.0 mA, the voltage available to the circuits is 11.2V. When the current is doubled the voltage available decreases to 10.4 V. What is the internal resistance of the battery?

Reference no: EM13667237

Questions Cloud

Several teenagers swim toward a rectangular : Several teenagers swim toward a rectangular, wooden raft that is 2.10 m wide and 2.50 m long. If the raft is 7.50 cm thick, how many 75.0kg teenage boys can stand on top of the raft without the raft becoming submerged? Suppose the wood density is 650..
Prepare the companys closing entries in the general journal : Prepare the company's income statement, prepare the company's statement of retained earnings and prepare the company's closing entries in the general journal
Maximum radius-a point source of light is submerged : A point source of light is submerged 2.0 m below the surface of a lake and emits rays in all directions. On the surface of the lake, directly above the source, the area illuminated is a circle. What is the maximum radius that this circle could have?
Estimate how long does it take to reach its highest point : A ball is thrown vertically upward with a speed of +16.0 m/s. Determine how long does it take to reach its highest point
What is the internal resistance of the battery : A battery powers some DC circuit. When the current is 40.0 mA, the voltage available to the circuits is 11.2V. When the current is doubled the voltage available decreases to 10.4 V. What is the internal resistance of the battery?
Determine the truck original speed : A truck covers 40.0 meter in 7.05 second while smoothly slowing down to a final velocity of 2.95 m/s. Determine the truck original speed
Two transverse waves traveling on two strings : The drawing shows two transverse waves traveling on two strings. The linear density of each string is 0.0606 kg/m, and the tension is given by a 20.6-N block that is hanging from the string. Decide the speed of the wave in part (a) and part (b) of th..
Find what energy must the deuteron have : In a nuclear experiment a proton with kinetic energy 3.0 MeV moves in a circular path in a uniform magnetic field. Find what energy must the following two particles have
What are the waves speed-wavelength and frequency : A woman is standing in the ocean, and she notices that after a wave crest passes by, five more crests pass in a time of 57.1 s. The distance among two successive crests is 36.4 m. What are the wave's (a) period, (b) speed, (c) wavelength, and (d) fre..

Reviews

Write a Review

Physics Questions & Answers

  Alternating current operating at fixed frequency and voltage

In an RLC series circuit that includes a source of alternating current operating at fixed frequency and voltage, the resistance R is equal to the inductive reactance. If the plate separation of the capacitor is reduced to one fourth of its original v..

  What is the lorentz factor for the comet

An astronomer observes a comet and measures the wavelength of the H? line to be at 486.2 nm. In the lab, the line is found to be at 486.1 nm. What is the Lorentz factor for the comet

  Radiation from the head is a major source of heat loss from

radiation from the head is a major source of heat loss from the human body. model a head as a 20-cm-diameter 20-cm-tall

  What is the charge on the plates

A pair of closely spaced square conducting plates measure 8.0cm on a side. What is the charge on the plates

  Calculate its speed when it is farthest from the sun

A comet moves about the Sun in an elliptical orbit, with its closest approach to the Sun being about 0.570 AU and its greatest distance from the sun being 41.5 AU (1 AU = the Earth-Sun distance). What is its speed when it is farthest from the Sun

  Determine the change in the systems kinetic energy

A 1 022-kg satellite orbits the Earth at a constant altitude of 91-km. What is the change in the system's kinetic energy

  Find the magnitude and direction of the owners velocity

A 26.2-kg dog is running northward at 2.21m/s, while a 5.30-kg cat is running eastward at 2.83 m/s. Their 67.2-kg owner has the similar momentum as the two pets taken together. Find the magnitude and direction of the owner's velocity.

  How long will it take the tank to collapse

A storage tank has a diameter of 80 ft, a height of 25 feet, andcontains oil to a height of 15 ft. The suction pumps, whichcan handle 15, 000 bbl/d are started, but the safety valves areclogged and a vacuum is drawn in the tank. The roof is flatan..

  Calculate the work done on the plane by the catapult

A fighter plane is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 2.3 x105 Newton. Calculate the work done on the plane by the catapult

  Magnitude of the force exerted by the field on wiresection

A 15.0 ampere current flows through a 4.75 msection of wire, perpendicular to a 0.250 T magnetic field.What is the magnitude of the force exerted by the field on the wiresection?

  Determine the moment of inertia of the wheel

A block of mass m is attached to a string that is wrapped around the circumference of a wheel of radius R and moment of inertia I. Find the moment of inertia of the wheel if its radius is 8.0 cm

  Current along path through thumb and index finger exceeds

A person notices a mild shock if the current along a path through the thumb and index finger exceeds 72µA. Compare the maximum possible voltage without shock acrossthe thumb and index finger with a dry-skin resistance of3.0 multiplied by 105 and a we..

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