Compute what is the emf of the battery

Assignment Help Physics
Reference no: EM13541649

When the lights of an automobile are switched on, an ammeter in series with them reads 9.90 A and a voltmeter connected across them reads 11.80 V. When the electric starting motor is also turned on, the ammeter reading drops to 7.50 A and the lights dim somewhat. If the internal resistance of the battery is 41 m? and that of the ammeter is negligible, what is the emf of the battery?

Reference no: EM13541649

Questions Cloud

Determine how massive was the apple : William Tell shoots an apple from his son's head. The speed of the 129-g arrow just before it strikes the apple is 21.2 m/s, how massive was the apple
Determine what is the mass of the second car : A 10000 kg boxcar traveling at 16 m/s strikes a second boxcar at rest. The two stick together and move off with a speed of 6.0 m/s. What is the mass of the second car
Determine what is ordinary income and capital gain : Determine what is ordinary income and capital gain/loss for Ben and how would that change under the options he and Reed suggest and what is an income payment or capital payment for the LLC?
Calculate the laundrys maximum tangential speed : The spin cycles of a washing machine have two angular speeds, 409rev/min and 608rev/min . The internal diameter of the drum is 0.610m. Find the laundry's maximum tangential speed
Compute what is the emf of the battery : When the lights of an automobile are switched on, an ammeter in series with them reads 9.90 A and a voltmeter connected across them reads 11.80 V. what is the emf of the battery
Evaluate the acceleration of the satellite : A satellite is in a circular orbit around the Earth at an altitude of 1.68 106 m.  Find the acceleration of the satellite
State potassium phosphate buffer solution of ph : As a technician in a large pharmaceutical research firm, you need to produce 450.ml of 1.00M potassium phosphate buffer solution of pH = 7.13. The pKa of H2PO4 is 7.21.
The gauss-newton method : Write up your results using our standard format. Show and discuss the results of Steps 1-3 in some detail, including the observed convergence rates of steepest descent versus the Gauss-Newton method
How much force is needed to move the refrigerator : A 120.kg refrigerator is at rest on a kitchen floor ( mu of s= 0.43 and mu of K= 0.27). How much force is needed to move the refrigerator at a constant speed of 5.41 m/s

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