Mock test – SSC JE
#1. Hysteresis is the phenomenon in the magnetic circuit by which…?
#2. In a capacitor start single phase induction motor, the current in the…?
#3. A circuit has inductance of 2 H. If the circuit current changes at the rate of 10A/sec, then self induced emf is…?
emf = L X di/dt = 2×10= 20V
#4. Two holes are drilled in the disc on a diameter of energy meter to….?
#5. The B-H curve of…..will be a straight line passing through the origin?
#6. The B-H curve of…..will be a straight line passing through the origin?
#7. The magnetic material used for making permanent magnet is…..?
#8. The main advantage of temporary magnet is that we can…?
#9. In a three phase induction motor crawling happens at…?
#10. Dielectric loss is propotional to…?
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