SSC JE Electrical 2019 with solution SET-1
In the two wattmeter method, the readings of the two wattmeters are 500W, 500W respectively. The load power factor in a balanced 3-phase 3-wire circuit is:

0.5
1
0.8
0.9

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SSC JE Electrical 2019 with solution SET-1
 Let T be the net torque developed by the rotor runs at ω rad/s. What is the mechanical power developed?

Pmech = ωT
Pmech = (ωT)/60
Pmech = (2πωT)
Pmech = (2πωT)/60

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SSC JE Electrical 2019 with solution SET-1
 The laws involved in the expression e  = −dφ/dt are

Faraday’s and Ampere’s laws
Coulomb’s and Faraday’s laws
Faraday’s and Lenz’s laws
Coulomb’s and Ampere’s laws

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SSC JE Electrical 2019 with solution SET-1
 P = ρQHg is the water power equation. Head ‘H’ is measured in meter ‘g’ gravity constant is measured in meter/second square, then the measuring unit of ‘Q’, the flow rate of water is:

Square meter per second
Cubic meter per second
Meter per second
Meter per hour

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