A coil of 400 turns is wound uniformly on an annealed steel core with a mean-circumference of 0.2 m and a cross sectional area of 3x10-4 m2. The resistance of the coil is 10 Q and the voltage developed across the coil is 14 V. The relative permeability of an annealed steel is 900 and the permeability of free space is given as 4TT x 10-7 H/m. Calculate the following:

A coil of 400 turns is wound uniformly on an annealed steel core with a mean-circumference of 0.2 m and a cross sectional area of 3x10-4 m2. The resistance of the coil is 10 Q and the voltage developed across the coil is 14 V. The relative permeability of an annealed steel is 900 and the permeability of free space is given as 4TT x 10-7 H/m. Calculate the following:

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter9: Condensed Matter Physics

Section: Chapter Questions

Problem 73P: The Hall effect is demonstrated in the laboratory. A thin rectangular strip of semiconductor with...

See similar textbooks

Similar questions

A tightly wound solenoid at 4.0 K is 50 cm long and is constructed from Nb wire of radius 1.5 mm. What maximum current can the solenoid carry if the wire is to remain superconducting?
A tunnel diode and a resonant-tunneling diode both utilize the same physics principle of quantum tunneling. In what important way are they different?
Measurements of a superconductor's critical magnetic field (in T) at various temperatures (in K) are given below. Use a line of best fit to determine Bc(0). Assume Tc = 9.3 K.
Q6:- (a) Using diode equation, determine the diode current at 20°C for a silicon diode with n=2, Is=0.1μA at a reverse-bias potential of -10 V. (b) Is the result expected? Why?
Niobium metal becomes a superconductor(with zero electrical resistance) when cooledbelow 8.3 K.The permeabilty of free space is 1.25664 ×10−6 N/A2.If superconductivity is destroyed when thesurface magnetic field exceeds 0.15 T, determine the maximum current a 3.2 mm diameter niobium wire can carry and remain superconducting.Answer in units of A.
Niobium metal becomes a superconductorwhen cooled below 9 K.The permeability of free space is 1.25664 ×10−6 N/A2.If superconductivity is destroyed when thesurface magnetic field exceeds 0.1334 T, determine the maximum current a 2.775 mmdiameter niobium wire can carry and remainsuperconducting.Answer in units of A.
A Hall probe made from a semiconductor in the form of a cube of side 1 mm is being designed to measure a magnetic field. If the carrier concentration is 5x1017/cm and the operation current density for the probe is 10 mA/cm². find the probe sensitivity in unit V/T. Assume a mobility of 0.5 m2/Vs.
Because of its semiconducting properties, CdSCdS is sometimes used in electronic devices. The band gap energy for CdSCdS is 2.40 eVeV . What is wavelength of a photon with this energy?
A zener diode is specified as having a brealdown voltage 9.1V, with a maximum power of 364mW. What is the maximum current the diode can handle?
The photo-diode can be used as a variable-resistance, explain with details
Look up the diameter of a silicon atom, in Å. The latestsemiconductor chips have fabricated lines as small as 14nm. How many silicon atoms does this correspond to?
The maximum wavelength of light that a certain silicon photocell can detect 1.11μm1.11μm.a. What is the energy gap (in electron volts) between the valence and conduction bands for this photocell?b. Explain why pure silicon is opaque.