Ratio of the power lost in the core to that lost in sheath

Assignment Help Physics
Reference no: EM13565104

A transmission line is made of a core of copper surrounded by a concentric circular sheath of steel to give it strength.  The copper core is 1.0 cm in diameter and the tightly fitting sheath has an outer diameter of 2.0 cm.  What is the resistance of 1.0 km of this transmission line?  What is the ratio of the current carried by the core to that carried by the sheath?  What is the ratio of the power lost in the core to that lost in the sheath?

Reference no: EM13565104

Questions Cloud

A step-down transformer produced a voltage : A step-down transformer produced a voltage of 9.0 V across the secondary coil when the voltage on the primary coil is 120 V. Whatvoltage would appear across the primary coil of this transformer if120 V was applied to the secondary coil?
What voltage is supplied to the charging unit : A transformer is used to power a cell phone charging unit. If thetransformer has a primary/secondary turns ration of 40:1 and isconnected to a 120 V power source, what voltage is supplied to the charging unit?
Value of voltage fed to transmission line at generator end : 100 MW of electrical power is delivered at 200 kV to adistribution center over a transmission line which consumers 10% ofthe total power developed by the generating station in heat losses. What is the value of the voltage fed to the transmissionlin..
Calculate how long it takes to convert all water into steam : An electric kettle of 7.0 ohm resistance containing 500cm3 of water at 10 degrees Celsius is connected to the110 V supply. If 10% of the electrical energy is wasted byimperfect insulation, calculate how long it takes to convert allthe water into s..
Ratio of the power lost in the core to that lost in sheath : A transmission line is made of a core of copper surrounded by a concentric circular sheath of steel to give it strength.  The copper core is 1.0 cm in diameter and the tightly fitting sheath has an outer diameter of 2.0 cm.
Resistance of a wire depend upon the wire diameter : How does the resistance of a wire depend upon the wire diameter? How does the resistance of a wire depend upon the wirelength? Why is it useful to have a resistance measuring procedurethat uses only very small currents? What specific error is avoid..
Find the point between mars and the sun : Use the data of Table 7.3 to find the point between Mars and the Sun at which an object can be placedso that the net gravitational force exerted by Mars and Sun on this object is zero.
What is the radius of curvature of the mirror in meters : A concave makeup mirror is designed so that aperson 23 cm in front of it seesan upright image magnified by a factor of two. What is the radius of curvature of the mirror in meters?
The two balls of clay collide and stick together : A 19g ball of clay is shot to the right (in the positive -direction) at 21m/s toward a 38g ball of clay at rest. The two balls of clay collide and stick together. Call this reference frame S. 1. What is the total momentum in frame S?

Reviews

Write a Review

Physics Questions & Answers

  Estimate a mass for the planet saturn

One of Saturn's moons has an orbital distance of 1.87 x 108 m. estimate a mass for the planet Saturn

  Calculate peak-rms and average currents through resistor

A sine wave with amplitude 20V is connected to a 10K resistor. Calculate the peak, rms, and average currents through the resistor. What power rating should the resistor have

  Find the intensity of light transmitted by pair of sheets

A horizontal beam of vertically polarized light of intensity 43 W/m2 is sent through two polarizing sheets. What is the intensity of the light transmitted by the pair of sheets

  Find the laser beams electric field amplitude at focal point

A 200 MW laser pulse is focused with a lens to a diameter of2.0μm. find the laser beam's electric field amplitude at the focal point

  The normal force exerted by the pavement on the tires

The bowling ball has a diameter of 20.6 {rm cm}, and the angle the stick makes with the horizontal is 30.0 {rm ^circ}. You may suppose there is no friction between the stick and the bowling ball, though friction with the floor must be taken into acco..

  Q1 tony of mass 55 kg coasts on his bicycle of mass 20 kg

q1. tony of mass 55 kg coasts on his bicycle of mass 20 kg at a constant speed of 4 ms carrying a 12 kg pack. tony

  Water is boiling in a pan at sea level on a stove

Water is boiling in a pan at sea level on a stove. During 10 minutes of boiling, it is observed that 200 grams of water has evaporated. Then the rate of heat transfer to the water is what is kJ/min?

  At which angle will the electron scatter

A photon having E = 12.5 keV energy scatters from a free electron inside a metal. At which angle will the electron scatter

  Determine what is the particles new de broglie wavelength

A particle has a de Broglie wavelength of 2.7x10-10 m. Then its kinetic energy doubles. What is the particle's new de Broglie wavelength, assuming that relativistic effects can be ignored

  What is the length of stick as measured from s

A 180, 48.0 cm-diameter turntables rotate on frictionless bearings at 70.0. A 15.0 block sits at the center of turntable. A compressed spring shoots the block fundamentally outward along the frictionless groove in the surface of the turntable.

  Find the value of b

A rectangular coil 21cm by 37cm has 100 turns. This coil produces a maximum emf of 69V when it rotates with an angular speed of 200rad/s in a magnetic field of strength B

  What is the velocity of the more massive fragment

An unstable particle is at rest and suddenly breaks up into two fragments. No external forces act on the particle or its fragments. What is the velocity of the more massive fragment

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