Determine what is the reading of a voltmeter

Assignment Help Physics
Reference no: EM13668496

A battery with EMF 90.0 Volt has internal resistance Rb = 9.50 ohm.

a) Determine what is the reading Vv of a voltmeter having total resistance Rv = 430 ohm when it is located across the terminals of the battery?

b) Find what is the maximum value that the ratio Rb/Rv may have if the percent error in the reading of the EMF of a battery is not to exceed 3.50 percent?

Reference no: EM13668496

Questions Cloud

Magnitude of the force exerted with the hinge : The raised span of a drawbridge has its mass of 11,000kg distributed uniformly over its 14m length. Discover the magnitude of the tension in the supporting cable and the direction and magnitude of the force exerted with the hinge?
A gyroscope consists of a solid disk of radius : A gyroscope consists of a solid disk of radius R= 10cm, mounted in the center of a shaft whose length L= 32cm. One end of the shaft is mounted in a frictionless pivot, and the other end is free; the shaft has negligible mass. The disk has a mass M= 8..
What time will it be from equilibrium position : 5 kg mass attached to a spring, which it compresses and stretches a max distance of 10cm. Frequency is 10Hz. Discover spring constant, max acceleration, max velocity and if it starts at max compression at time t=0, at what time will it be 5cm from eq..
Disk and real image is formed on the screen : A luminous disk of diameter 2 cm is places 0.8m to the left of a flat screen. A converging lens is places among the disk and the screen at a location 20cm from the disk and a real image is formed on the screen.
Determine what is the reading of a voltmeter : A battery with EMF 90.0 Volt has internal resistance Rb = 9.50 ohm. Determine what is the reading Vv of a voltmeter having total resistance Rv = 430 ohm when it is located across the terminals of the battery
Find what is the speed of a point on that rim : A boy places a picnic basket on the outer rim of a merry-go-round that has a radius of 6.3 meter and revolves once every 27 second. Find what is the speed of a point on that rim
Determine the stopping distance when the surface is dry : A car is traveling at 50.0 mi/h on a horizontal highway.  Determine the stopping distance when the surface is dry
Evaluate what is the tangential acceleration of the car : A race car accelerates uniformly as it leaves the pit area, going from rest to 330 km/h in a semi circular arc with a radius of 200 meter. Evaluate the tangential acceleration of the car
Find the maximum motional emf in the wire : A physics teacher does the following emf demonstration. She has two students hold a long wire connected to a voltmeter. The wire is held slack, therefore that it sags with a large arc in it. find the maximum motional emf in the wire

Reviews

Write a Review

Physics Questions & Answers

  Find what is the magnitude of the electric field

A 1.65 nC charge with a mass of 1.5 x 10-15 kg experiences an acceleration of 6.33 x 107 m/s2 in an electric field. What is the magnitude of the electric field

  What charge must be on each plate

An electric field of 9.50 105 V/m is desired between two parallel plates, each of area 44.5 cm2 and separated by 2.45 mm of air. What charge must be on each plate

  Suppose that the turntable achieved its angular speed by

consider a small object at 3.72cm from the axis of a phonograph turntable that operates at 22.8 revmin .a assuming the

  What is the capacitance of the spheres

Two concentric spheres of radii a and b> a have equal and oppposite charge Q when the potential diffrence between them is V. What is the capacitance of the spheres

  How fast is the crate moving

A factory worker accidentally releases a 200 kg crate that was being held at rest at the top of a ramp that is 3.9 m long, How fast is the crate moving as it reaches the bottom of the ramp

  How much energy is produced in this collision

Two comets, each of mass 6500 kg and traveling 95 m/s in opposite directions, collide head-on and come to rest. How much energy is produced in this collision

  Find the position of the first dark spot on each side

If the balls are released from a height where the bottom of the basketball is at 0.781m above the ground, what is the absolute value of basketball's momentum just before it hits the ground.

  Design and draw a circuit using the cascade system to

1. design and draw a circuit using the cascade system to operate two cylinders a and b which on the operation of a

  What would be the block''s velocity

An electric field of 220000 N/C points due west at a certain spot. What is the magnitude of the force that acts on a charge of -10C at the spot.

  Determine the frequency of the stationary siren

When an ambulance is stationary, the siren gives off a sound at a frequency of 500Hz. What is the frequency of the stationary siren

  How close are the two charges

A positive charge of 0.900? C is located in a uniform field of 1.05×105 N/C. How close are the two charges

  Obtain what is the change in internal energy of the gas

An ideal gas initially at 408 Kis compressed at a constant pressure of 34 N/m2 from a volume of 3.0m3 to a volume of 1.8 m3. What is the change in internal energy of the gas

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