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Which of the following is a piezo-electric material ?

Recent questions tagged efficiency

1 answer 35 views

Transformer efficiency

asked Jun 11 by Shimroz123
1 answer 18 views

What is the efficiency of Class-B amplifier?  A) 68.50% B) 78.50% C) 88.50% D) 98.50%

asked Jun 18, 2018 in Electronics Engineering by Shimroz123
1 answer 48 views

The overall efficiency of Thermal Power Plant is equal to _______________ .  (A) Regenerative Cycle Efficiency (B) Renkine Cycle Efficiency (C) Carnot cycle efficiency (D) None of the above

asked May 8, 2018 in Electric Power Generation by Shimroz123
1 answer 33 views

A transformer operates 24 hours day at full -load. It's full -load efficiency is :  (A) equal all day efficiency (B) more than all -day efficiency (C) less than all -day efficiency (D) equal to maximum efficiency

asked Apr 30, 2018 in Electrical Engineering by Shimroz123
1 answer 14 views

The rankine cycle efficiency of steam power plant is  (1) 60-80% (3) 30-45% (2) 45-80% (4) 20-30%

asked Apr 29, 2018 in Electric Power Generation by Shimroz123
1 answer 24 views

Transmission efficiency of a transmission line increases with the

asked Apr 26, 2018 in Switchgear And Protection by Shimroz123
1 answer 29 views

For high efficiency of transfer of power, internal resistance of the source should be?

asked Mar 25, 2018 in Network Analysis by Shimroz123
1 answer 30 views

For a transformer, operating at constant load current, maximum efficiency will occur at?

asked Mar 19, 2018 in Transformer by Shimroz123
1 answer 18 views

The efficiency of two identical transformers under load conditions can be determined by?

asked Mar 19, 2018 in Transformer by Shimroz123
1 answer 16 views

The efficiency of a transformer, under heavy loads, is comparatively low because?

asked Mar 19, 2018 in Transformer by Shimroz123
1 answer 28 views

Which motor have more efficiency, synchronous motor or induction motor?

asked Mar 18, 2018 in Synchronous machine by Shimroz123
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