Recent questions tagged bridge

1 answer 49 views

Wheatstone bridge

asked Jun 11 by Shimroz123
1 answer 17 views

A dummy strain gage is used in a quarter bridge strain gage circuit to :  (A) compensate for changes in temperature and lead wire resistance  (B) produce more output voltage from the bridge  (C) increase the sensitivity of the bridge  (D) compensate lead wire resistance only

asked Apr 29, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 8 views

Which of the following is true with respect to Wien Bridge? A) It does not require equal values of R or C  B) It requires that R and C values of all components must be equal C) It requires that all resistors should have equal values D) None of these

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
1 answer 57 views

The no-load speed of a single-phase SCR bridge converter fed separately excited dc motor operating at a firing delay angle, α and flux, Φ (A) directly proportional to α and Φ (B) inversely proportional to α and Φ (C) directly proportional to α and inversely proportional to Φ (D) directly proportional to Φ and inversely proportional to α

asked Apr 28, 2018 in Power Electronic Controlled Drives by Shimroz123
1 answer 24 views

A 230 V, 50 Hz phase controlled single-phase full-controlled SCR bridge converter draws 15 A constant dc current. If the source inductance is 3 mH, the drop in dc output voltage is (A) 4.5 V (B) 6.75 V (C) 9 V (D) 13.5 V

asked Apr 28, 2018 in Power Electronics by Shimroz123
1 answer 38 views

In a 230 V, 50 Hz single-phase SCR bridge converter operating at a firing delay angle, α and with large R-L load, the input source current is (A) sinusoidal current (B) constant dc current (C) continuous rectangular pulses (D) alternating rectangular pulses

asked Apr 28, 2018 in Power Electronics by Shimroz123
1 answer 15 views

The bridge most suited for accurate measurement of relative permittivity of dielectric materials is (A) Carey Foster Bridge (B) Anderson’s bridge (C) Heaviside Bridge modified by Campbell. (D) Schering Bridge.

asked Apr 28, 2018 in Control System by Shimroz123
1 answer 27 views

The bridge method commonly used for finding mutual inductance is (A) Heaviside Campbell bridge (B) Schering bridge (C) De Sauty bridge (D) Wien bridge

asked Apr 26, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 14 views

The bridge most suited for measurement of a four-terminal resistance in the range of 0.001 Ohm to 0.1 Ohm (A) Wien’s bridge (B) Kelvin double bridge (C) Maxwell’s bridge (D) Shering Bridge

asked Apr 26, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 44 views

Explain three phase bridge inverter.

asked Feb 19, 2018 in Unit 4 by Quiz
1 answer 66 views

Explain the operation of full bridge converters with their different operating modes. State its advantages and disadvantages.

asked Feb 12, 2018 in Unit 2 by Quiz
1 answer 49 views

explain blanking times for Bridge circuit?

asked Sep 19, 2017 in Unit 5 by Quiz
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