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SSC JE Electrical 2019 with solution SET-2

SSC JE Electrical 2019 with solution SET-2
A _____ transformer is usually mounted on a pole of plinth?

Distribution
Power
Current
Potential

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SSC JE Electrical 2019 with solution SET-2
____comes under the category of high-frequency heating?

Eddy current heating
Arc heating
Infrared heating
Resistance heating

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SSC JE Electrical 2019 with solution SET-2
 The number of valence electrons of P and Si are respectively?

3 and 4
5 and 4
4 and 4
4 and 5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Phosphorus (P) has 15 electron i.e 2,8,5. Hence the number of electron in its outermost orbit is 5.
Silicon (Si) has 14 electron i.e 2,8,4. Hence the number of electrons in its outermost orbit is 4.

SSC JE Electrical 2019 with solution SET-2
Observe the given network and answer the question? The potential at point a = ?

E1 − I1R1
E1 − I1R1 & I3R3
I2R2
I3R3

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

For the given network the potential at point a can be found by applying KVL.
For loop 1
Va = E1 − I1R1
Va = I3R3
For loop 2
Va = E2 − I2R2
 


SSC JE Electrical 2019 with solution SET-2
The function of compensation winding in AC series motor is to

Reduced the armature resistance
Reduce the effects of armature reaction
Improve commutation
Increase field flux

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SSC JE Electrical 2019 with solution SET-2
A transistor can be made to operate as a switch by operating it in which of the following regions?

Active region
Saturation region, cut-off region
Active region, cut-off region
Active region, saturation region

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