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The increase in resistance due to non uniform distribution of current in a conductor is
known as ;

(^) Electro magnetic effect (01) Proximity effect

(() Electro static effect (D) ടിയ ലട!

For moving iron instruments, which statement below is not correct ?
[ക] Scales of this instrument are uniform

(ए) This instruments can be used both in d.c. as well as in a.c. circuits
(C) This instruments posses high operating torque

(D} Simplicity in construction

In a delta connected circuit, the relationship between line and phase voltage of a delta
connected circuit is given by :

0 2 غ2
‎९) ५, = 3५ (ದ १ ~ [२] 2). ೫ < +‏ ۷ص۷ ‎(ಗ)‏

In the measurement of 3 phase power by 2 wattmeter method if 2 wattmeter readings are
equal, the power factor of the circuit is :

(ಗಿ) unity (8) 2௦ (C) 0.8 lagging (D) 0.8 leading

Oil in transformer is used as :
(ಗಿ) Insulating medium (8) Cooling medium
(9) Both (A) and (B) (D) None of the above

The pole and pole shoes of a synchronous machine are laminated in order to reduce :
(ಗಿ) Hysterisis loss (18) Copper loss
(9) Reluctance of magnetic circuit (10) Heating due to eddy currents

Economiser in a boiler is used to :
(2) Increase life of boiler (B) Increase steam production
(C) Reduce fuel consumption (D) Reduce steam pressure

In a ACSR conductors, steel wire 15 11500 (೧೯ ;
(A) Reducing inductance

(8) Compensation for skin effect

(5) Providing additional mechanical strength
[12] Take care of surges

154/2014 6 A