SSC JE Electrical 2019 with solution SET-2
The type of damping used for moving iron instruments is

Gravity friction damping
Air friction damping
Fluid friction damping
Eddy current damping

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SSC JE Electrical 2019 with solution SET-2
The work done on or by a unit N-pole in moving once around a closed path is equal to

The product of flux and number of turns enclosed by that path
Magnetic flux density
Reluctance
The product of current and number of turns enclosed by that path

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SSC JE Electrical 2019 with solution SET-2
 If a transformer has N1 = N2 = 1 : 1, then the transformer is a/an

Isolation transformer
Current transformer
Potential transformer
Power transformer

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SSC JE Electrical 2019 with solution SET-2
Four statements are given below. Identify the correct statement?

XNOR is a basic gate
XOR is a universal gate
XOR is a basic gate
XOR is a derived gate

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SSC JE Electrical 2019 with solution SET-2
The flux while crossing air gap tends to bulge outwards, thereby increasing the effective area of the gap, this effect is known as

Fringing effect
Hall effect
Stroboscopic effect
Hopkinson’s effect

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SSC JE Electrical 2019 with solution SET-2
The scheduled speed of a train is______

Equal to maximum speed
Equal to average speed
Always greater than the average speed
Always less than the average speed

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