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Q#1 Electro-mechanical Instruments GATE EE 1999 MSQ +2 marks -0 marks

For the circuit shown in figure, the internal resistance of the armatures as well as that of the current coil of the wattmeter are zero and the voltmeters have a very large figure of merit.  is a 6A full scale moving iron type meter.  is a commercial full wave rectifier type meter of full scale 5A.  is a 500V meter of the peak response type.  is a 300V PMMC type meter and W is an electrodynamometer type, 5A, 230V wattmeter. Determine the readings of  and W.

 

W = 563.20 W

W = 573.20 W

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