SSC JE Electrical 2018 with solution SET-1
 Determine the magnitude of EMF (in V) induced between the axis 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 the magnetic field of 3 T acting parallel to the rotation of the disc

4.64
6.69
6.67
5.65

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SSC JE Electrical 2018 with solution SET-1
 Which one of the following statement is NOT true about PMMC type instruments?

The cost of PMMC instruments is high
Stray magnetic errors are small in these types of instruments
PMMC type Instruments have uniformly divided scale
These instruments are suitable for both AC and DC currents

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SSC JE Electrical 2018 with solution SET-1
 Starting winding of a single-phase motor of a refrigerator is disconnected from the circuit by means of a

None of these
Centrifugal Switch
Thermal Relay
Magnetic Relay

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SSC JE Electrical 2018 with solution SET-1
Determine the magnetic field strength (in A/m) of a material when the intensity of magnetization of the material is 0.084 Amp/m and the magnetic susceptibility of the material is 0.0012

70
0.07
700
0.7

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