Which of the following lamps has the shortest/less life span in working hours?

SSC JE Electrical 2019 with solution SET-1
Which of the following lamps has the shortest/less life span in working hours?

Incandescent lamp

Mercury vapor lamp

Fluorescent lamp

Sodium vapor lamp

Incandescent lamp

Mercury vapor lamp

Fluorescent lamp

Sodium vapor lamp

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SSC JE Electrical 2019 with solution SET-1
H = ____is the expression for the magnetic field due to an infinite linear current-carrying conductor

(μI ⁄ 2Πr) A/m

(I ⁄ 2Πr) A/m

(μI ⁄ 2r) A/m

(I ⁄ 2r) A/m

(μI ⁄ 2Πr) A/m

(I ⁄ 2Πr) A/m

(μI ⁄ 2r) A/m

(I ⁄ 2r) A/m

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SSC JE Electrical 2019 with solution SET-1
Which of the following losses is together called iron losses?

Eddy current loss and hysteresis loss

Hysteresis loss and frictional loss

Eddy current loss and frictional loss

Hysteresis loss and copper loss

Eddy current loss and hysteresis loss

Hysteresis loss and frictional loss

Eddy current loss and frictional loss

Hysteresis loss and copper loss

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SSC JE Electrical 2019 with solution SET-1
What is the reason behind using a centrifugal switch in a single-phase induction motor?

To out in the capacitor during running conditions

To cut-off the starting winding at an appropriate instant

To protect the motor from overloading

To improve the starting performance of the motor

To out in the capacitor during running conditions

To cut-off the starting winding at an appropriate instant

To protect the motor from overloading

To improve the starting performance of the motor

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SSC JE Electrical 2019 with solution SET-1
Which of the following fuel has the least calorific value?

Hydrogen

Wood

Kerosene oil

LPG

Hydrogen

Wood

Kerosene oil

LPG

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SSC JE Electrical 2019 with solution SET-1
4F2D is a/an number

Hexadecimal

Binary

Octal

Decimal

Hexadecimal

Binary

Octal

Decimal

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SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1 Which of the following lamps has the shortest/less life span in working hours?

SSC JE Electrical 2019 with solution SET-1 H = ____is the expression for the magnetic field due to an infinite linear current-carrying conductor

SSC JE Electrical 2019 with solution SET-1 Which of the following losses is together called iron losses?

SSC JE Electrical 2019 with solution SET-1 What is the reason behind using a centrifugal switch in a single-phase induction motor?

SSC JE Electrical 2019 with solution SET-1 Which of the following fuel has the least calorific value?

SSC JE Electrical 2019 with solution SET-1 4F2D is a/an number

SSC JE Electrical 2019 with solution SET-1
Which of the following lamps has the shortest/less life span in working hours?

SSC JE Electrical 2019 with solution SET-1
H = ____is the expression for the magnetic field due to an infinite linear current-carrying conductor

SSC JE Electrical 2019 with solution SET-1
Which of the following losses is together called iron losses?

SSC JE Electrical 2019 with solution SET-1
What is the reason behind using a centrifugal switch in a single-phase induction motor?

SSC JE Electrical 2019 with solution SET-1
Which of the following fuel has the least calorific value?

SSC JE Electrical 2019 with solution SET-1
4F2D is a/an number