Mock test – SSC JE

#1. Two holes are drilled in the disc on a diameter of energy meter to....?

#2. The B-H curve of.....will be a straight line passing through the origin?

#3. The main advantage of temporary magnet is that we can...?

#4. 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

#5. Dielectric loss is propotional to...?

#6. In a three phase induction motor crawling happens at...?

#7. In a capacitor start single phase induction motor, the current in the...?

#8. Hysteresis is the phenomenon in the magnetic circuit by which...?

#9. The magnetic material used for making permanent magnet is.....?

#10. The AC bridge that used for measurement of dielectric loss of a capacitor is....?

finish

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