A power transformer is a device that consists of a coil wrapped around an electromagnet that transfers electricity from one circuit to another without changing the frequency of the electric energy. Although the frequency of the electrical energy isn't changed, the voltage and current commonly change when passing through.
Dominic M answered the question on June 28, 2018 at 15:43
-
What Are Some Good Things About Nuclear Energy?
(Solved)
What Are Some Good Things About Nuclear Energy?
Date posted:
June 28, 2018
.
Answers (1)
-
How Do Windmill Generators Produce Electricity?
(Solved)
How Do Windmill Generators Produce Electricity?
Date posted:
June 28, 2018
.
Answers (1)
-
How Does Running Water Produce Electricity?
(Solved)
How Does Running Water Produce Electricity?
Date posted:
June 28, 2018
.
Answers (1)
-
Advantages of using junction boxes
(Solved)
Advantages of using junction boxes
Date posted:
June 26, 2018
.
Answers (1)
-
Briefly describe four types of DC Motors?
(Solved)
Briefly describe four types of DC Motors?
Date posted:
June 23, 2018
.
Answers (1)
-
State the reasons for biasing a transistor
(Solved)
State the reasons for biasing a transistor.
Date posted:
June 22, 2018
.
Answers (1)
-
State merits of a full wave center tapped rectifier over half wave rectifier
(Solved)
State the merits of full wave center tapped rectifier over half wave rectifier
Date posted:
June 22, 2018
.
Answers (1)
-
What is Axonometric projection?
(Solved)
What is Axonometric projection?
Date posted:
June 14, 2018
.
Answers (1)
-
What is Azimuthal Projection?
(Solved)
What is Azimuthal Projection?
Date posted:
June 14, 2018
.
Answers (1)
-
List the steps in the calorimeter method of measuring heat capacity of solid
(Solved)
List the steps in the calorimeter method of measuring heat capacity of solid
Date posted:
June 2, 2018
.
Answers (1)
-
Why are synchronous motors not self starting?
(Solved)
Why are synchronous motors not self starting?
Date posted:
April 30, 2018
.
Answers (1)
-
What are the advantages and disadvantages of induction motors?
(Solved)
Advantages and disadvantages of induction motors.
Date posted:
April 30, 2018
.
Answers (1)
-
Explain the advantages of induction motors over synchronous motors
(Solved)
Explain the advantages of induction motors over synchronous motors
Date posted:
April 30, 2018
.
Answers (1)
-
Into a stream, with no trace of salt initially, a salt with a concentration of 20 mg/cc is introduced at a constant rate of 2...
(Solved)
Into a stream, with no trace of salt initially, a salt with a concentration of 20 mg/cc is introduced at a constant rate of 2 litres per minute. The samples collected at a downstream section sufficiently far away indicated an equilibrium salt concentration of 0.05 ppm. Determine the discharge in the stream from this data.
Date posted:
April 9, 2018
.
Answers (1)
-
The following data pertain to streamflow in a river at a given gauge station. The rate of rise in water surface elevation = 10.0 cm/h....
(Solved)
The following data pertain to streamflow in a river at a given gauge station. The rate of rise in water surface elevation = 10.0 cm/h. the normal discharge for the river stage obtained from the steady flow rating curve = 150 m3/s. slope of the river bed = 3 x 10-4. Assume the velocity of the flood wave to be 2.5 cm/sec, compute the river discharge.
Date posted:
April 9, 2018
.
Answers (1)
-
A drainage basin has an area of 210 km2. The average depth of rainfall received by it during a monsoon period is computed as 65...
(Solved)
A drainage basin has an area of 210 km2. The average depth of rainfall received by it during a monsoon period is computed as 65 cm, while the runoff measured at its outlet during the same period is estimated to be 5.68 x 107 m3. Compute the depth of runoff. What percentage of rainfall has become runoff? If all this runoff volume is stored and used to irrigate a crop which requires 60 cm of water, how many hectares can be irrigated?
Date posted:
April 9, 2018
.
Answers (1)
-
What volume is represented by 57 mm of runoff depth from a basin of area 3300 km2? Give the answer in m3, cumec-days, ha-m and...
(Solved)
What volume is represented by 57 mm of runoff depth from a basin of area 3300 km2? Give the answer in m3, cumec-days, ha-m and million cubic metres.
Date posted:
April 9, 2018
.
Answers (1)
-
The mean daily flows at a gauging station for a period of 7 days are 7, 27, 58, 41, 31, 20 and 13 m3/s respectively....
(Solved)
The mean daily flows at a gauging station for a period of 7 days are 7, 27, 58, 41, 31, 20 and 13 m3/s respectively. What is the total volume of streamflow at the site in cumec-days(metres cubed per second.)? and in hectare-metres? What is the mean flow rate for the week? If the drainage area at the site is 100 km2, what is the runoff volume in cm?
Date posted:
April 9, 2018
.
Answers (1)
-
What are the contributions that engineers could make to conserve energy
(Solved)
What are the contributions that engineers could make to conserve energy
Date posted:
April 5, 2018
.
Answers (1)
-
Differentiate malleability from ductility as used in material processing
(Solved)
Differentiate malleability from ductility as used in material processing
Date posted:
April 2, 2018
.
Answers (1)