SSC JE Electrical 2018 with solution SET-1
The speed of a synchronous motor can be changed by

Changing the load
Changing the supply voltage
Changing the supply Terminals
Changing the frequency

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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

0.7
0.07
700
70

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SSC JE Electrical 2018 with solution SET-1
 Determine the voltage (in V) of a battery connected to a parallel plate capacitor (filled with air) when the area of the plate is 10 square centimeters, the separation between the plate is 5 mm and the charged stored on the plate is 20 pC

12.3
10.3
11.3
14.3

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