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SSC JE Electrical 2019 with solution SET-2

SSC JE Electrical 2019 with solution SET-2
In electric traction, the specific energy consumption is measured in

Watt-hour/ ton-km
Ton-km watt-hour
Watt-hour/RPM
RPM/watt-hour

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SSC JE Electrical 2019 with solution SET-2
A coil of 360 turns is linked by a flux of 200 μWb. If the flux is reversed in 0.01 second, then find the EMF induced in the coil?

0.72 V
144 V
14.4 V
7.2 V

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Given


SSC JE Electrical 2019 with solution SET-2
The force experienced by current-carrying conductor lying parallel to magnetic field is

BIL
BIL sinφ
Zero
BIL cosφ

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SSC JE Electrical 2019 with solution SET-2
Which of the following heating element has the lowest operating temperature?

Nichrome
Graphite
Kanthal
Eureka

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The melting point of Eureka is 1221 to 1300 °C
The melting point of Kanthal is 1,425 °C
The melting point of Nichrome is 1400 °C
The melting point of Graphite is 3,600°C
Hence Eureka has the least range of temperature.
 

SSC JE Electrical 2019 with solution SET-2
Which of the following instruments has a uniform scale?

Moving iron type
PMMC type
Electrodynamic type
Dynamometer type

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

In the PMMC type instrument, the deflection is directly proportional to the current flowing through the instrument, we get a uniform scale for the instrument. It gives a uniform scale of upto 270° or more.
Td ∝ I

SSC JE Electrical 2019 with solution SET-2
1 kcal is approximately equal to

420 watt-hour
420 joules
4.2 joules
4200 watt-sec

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

1 kcal = 4200 J
Watt = Joule/S
joule =  watt/sec
4200 joule = 4200 watt-sec

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