SSC JE Electrical Engineering 23rd Jan 2018 Shift-2

Instructions

For the following questions answer them individually

SSC JE Electrical Engineering 23rd Jan 2018 Shift-2 - Question 121


Which one of the following is the S.I. unit of magnetic field strength?

Video Solution

SSC JE Electrical Engineering 23rd Jan 2018 Shift-2 - Question 122


Which one of the following is the CORRECTexpression for magnetic susceptibility?

Video Solution

SSC JE Electrical Engineering 23rd Jan 2018 Shift-2 - Question 123


Which one of the following is the CORRECT value of magnetic permeability in free space?

Video Solution

SSC JE Electrical Engineering 23rd Jan 2018 Shift-2 - Question 124


If the magnetic susceptibility of any material is less than zero then the material is .......

Video Solution

SSC JE Electrical Engineering 23rd Jan 2018 Shift-2 - Question 125


Determine the reluctance (in Amp-turns/Wb)of a coil, when the flux through the coil is 15 Wb and the produced mmf is 30 Amp-turns.

Video Solution

SSC JE Electrical Engineering 23rd Jan 2018 Shift-2 - Question 126


Determine the value of produced mmf(in Amp-turns) in a coil, if the coil has 120 turns and carrying a current of 0.1 A.

Video Solution

SSC JE Electrical Engineering 23rd Jan 2018 Shift-2 - Question 127


What will be the magnetic field strength (in A/m) of a material when the intensity of magnetization of the material is 0.064 Amp/m and the magnetic susceptibility of the material is $$0.52 \times 10^{-4}$$?

Video Solution

SSC JE Electrical Engineering 23rd Jan 2018 Shift-2 - Question 128


Determine the magnitude of EMF (in V) induced betweentheaxis of rotation and the rim of the disc, when the disc of radius 10 cm rotates with an angular velocity of 60 revolutions per second and placed in a magnetic field of 3 T acting parallel to the rotation of the disc.

Video Solution

SSC JE Electrical Engineering 23rd Jan 2018 Shift-2 - Question 129


Whatwill be the value of current (in A) in a 50 cm long air-core solenoid, if the value of magnetic field at the center of the solenoid is 5 mT and the solenoid has 300 turns?

Video Solution

SSC JE Electrical Engineering 23rd Jan 2018 Shift-2 - Question 130


Determine the maximum flux density (in T) of a material having eddy current coefficient of 2, thickness of 4 mm, volume of 20 cu. meter, which is supplied by a frequency of 50 Hz when the material has eddy current loss of 6 W.

Video Solution
cracku

Boost your Prep!

Download App