What is the magnitude of the currentdensity

Assignment Help Physics
Reference no: EM13563980

A beam contains 3.0 x 106 doubly charged positive ionsper cubic centimeter, all of which are moving north with a speed of5.4 x 105 m/s. What is the magnitude of the currentdensity?

Reference no: EM13563980

Questions Cloud

How much time passes before it hears anecho : A dolphin located in sea water at a temperature of 25°C emits asound directed toward the bottom of the ocean 175 m below. How much time passes before it hears anecho?
Find the amplitude of the current at the resonant frequency : An AC power supply with a maximum potential of 62 V is across aseries RLC circuit, where the inductance is 18 mH, the capacitanceis 44 nF, the resistance is 31. Find the resonant frequency.
How much work is done by gravity : An object of mass 10.0 kg is released from the top of an inclined plane which makes an angle of inclination of 30.0? with the horizontal. The object slides along the inclined plane
Particular guitar string is supposed to vibrate : A particular guitar string is supposed to vibrate at 206 Hz, but itis measured to actually vibrate at 210 Hz. By what percent should the tension in the string be changed to get the frequency to the correct value?
What is the magnitude of the currentdensity : A beam contains 3.0 x 106 doubly charged positive ionsper cubic centimeter, all of which are moving north with a speed of5.4 x 105 m/s. What is the magnitude of the currentdensity?
Experiences a magnetic force of magnitudef : When a charged particle moves at an angle of 17° with respectto a magnetic field, it experiences a magnetic force of magnitudeF. At what angle (less than 90°) with respect to thisfield will this particle, moving at the same speed, experience amagneti..
Two skaters are studying collisions on an ice-covered : Two skaters are studying collisions on an ice-covered(friction-less) lake. Skater 1, (m1=85 kg) is initiallytraveling with a speed of 5.0 m/s, and skater 2 (m2=120kg) is intially at rest. Skater 1 then "collides" with skater 2 and they lock arms an..
Angle between the is the magnitude of the magnetic field : A charge of -8.8 µC is traveling at a speed of 7.3*106 m/s in a region of space where thereis a magnetic field. The angle between the velocity of the chargeand the field is 52°. A force ofmagnitude 5.2*10-3 N acts on the charge. What is the magnitu..
Mass of the club-ax from the handleend of the club-ax : On a weekend archeological dig, you discover an old club-ax thatconsists of a symmetrical 10.0 kgstone attached to the end of a uniform 3.5 kg stick. You measure the dimensions of the club-ax as shown in the figure

Reviews

Write a Review

Physics Questions & Answers

  Calculate what is the amplitude of each wave

A fisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. What is the amplitude of each wave

  Find the net work done on the block

A 5kg block initially at rest is pulled to the ight along a horizontal surface by a constant, force of 30N acting at 53 degrees above the horizontal. Find the net work done on the block

  What maximum altitude does the rocket reach

A rocket rises vertically, from rest, with an acceleration of 4.0m/s2 until it runs out of fuel at an altitude of 1400m. After this point, What maximum altitude does the rocket reach

  Determine for how long in time was the hare stationary

A hare and a tortoise compete in a race over a straight course 1.40 km long. The tortoise crawls at a speed of 0.280 m/s toward the finish line. For how long in time was the hare stationary

  Determine the change in the kinetic energy of the block

A m1 = 47.0 kgblock and a m2 = 100.0 kg block are connected by a string as inFigure P8.36. The pulley is frictionless and of negligible mass. Determine the change in the kinetic energy of the 47.0 kg block

  What is the gauge pressure in the left section of the pipe

In the figure below, water flows through a horizontal pipe, and then out into the atmosphere at a speed of v1 = 13 m/s. What is the gauge pressure in the left section of the pipe

  Find how long does he take to reach maximum height

A long jumper leaves the ground at an angle of 20.0o to the horizontal and at a speed of 11.0 m/s. How long does he take to reach maximum height

  Cylinder made of insulating material has uniform volume

A cylinder made of insulating material has a uniform volume charge density. The cylinder is 20m in length and a radius 0.2m. The total charge on the cylinder is 4nC. Half way down the cylinder's length, what is the electric field outside the cylinder..

  What is the resultant vector

What is the resultant vector, R, obtained by adding vectors C and D? Express the magnitude to three significant figures. Express the angle to one decimal place.

  Find torque must be applied to the loop to hold it steady

A rectangular coil with 20 windings carries a current of 1.87 mA flowing in the counterclockwise direction. What torque must be applied to the loop to hold it steady

  Estimate the maximum flow speed

A pipe carrying 20°C water has a diameter of 2.4 cm. Estimate the maximum flow speed if the flow must be streamline

  What is the induced emf in the second coil

A transformer consists of two coils of wire wound on a common toroidal iron core. What is the induced emf in the second coil

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