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SSC JE Electrical 2019 with solution SET-2

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

Resistance heating
Eddy current heating
Arc heating
Infrared heating

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SSC JE Electrical 2019 with solution SET-2
Observe the given table. The truth table represents gate?

XOR
NAND
OR
AND

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

In the exclusive OR gate (XOR gate) has two inputs
The ouput will be 1 when either input is 1 i.e X = 1 and Y = 1, but not when both the inputs are 1.
If both the input is zero i.e X = 0 and Y = 0, then the output is 0.

SSC JE Electrical 2019 with solution SET-2
If a zero-centered voltmeter has a scale from  5V to − 5V, then the span of it is

5 V
−5 V
0 V
10V

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Voltage Scale Span of  instrument = Vmax − Vmin
Given
Vmax = 5 V
Vmin = −5V
Span = 5 −(−5) = 10 V
 

SSC JE Electrical 2019 with solution SET-2
A circuit consists of two parallel resistors, having a resistance of 20Ω and 30Ω respectively connected in series with 15Ω. If the current through the 15Ω resistor is 3A, then find the current through 20Ω and 30Ω resistors respectively?

2A, 1 A
1A, 2A
1.8A, 1.2A
1.2A, 1.8A

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SSC JE Electrical 2019 with solution SET-2
An ideal voltage source is one that____?

Supplies constant power
Has zero internal resistance
Has infinite internal resistance
Has medium internal resistance

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SSC JE Electrical 2019 with solution SET-2
The candle power of a lamp placed normal to a working plane is 60 CP. Find the distance if the illumination is 15 lux?

2 meters
1.5 meters
2.5 meters
4 meters

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Candle Power of lamp = 60 CP
Illumination of lamp = 15 lux
Distance(D) = ? meters
Illumination of lamp = (candle power)/(distance)2
(D)2 = candle power/Illumination of lamp
(D)2 = 60/15 =4
D = √4
D = 2
 

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