Question

In: Mechanical Engineering

A transformer that is 10 cm long, 6.2 cm wide, and 5 cm high is to...

A transformer that is 10 cm long, 6.2 cm wide, and 5 cm high is to be cooled by attaching a 10 cm x 6.2 cm wide gold heat sink to its top surface. The heat sink has seven fins, which are 5 mm high, 2 mm thick, and 10 cm long. A fan blows air at 25°C with a velocity of 6 m/s parallel to the passages between the fins. The heat sink is to dissipate 12 W of heat and the base temperature of the heat sink is not to exceed 45 °C to maintain safe operation. Is this design enough to cool the transformer to safe levels?

Solutions

Expert Solution

samet mamat answered 2 years ago
Next > < Previous

Related Solutions

A 10 cm long thin glass rod uniformly charged to +10 nC and a 10 cm...
A 10 cm long thin glass rod uniformly charged to +10 nC and a 10 cm long thin plastic rod uniformly charged to -10nC are placed side by side 4 cm apart. a. Find the electric field at distances 1.0 cm, 2.0 cm and 3.0 cm from the glass rod along the line connecting the midpoints of the two rods. (Hint: treat the rods as a uniform line of charges.) b. If the plastic rod is exchanged for a glass...
A rectangular swimming pool is 5 ft deep, 10 ft wide, and 15 ft long. The...
A rectangular swimming pool is 5 ft deep, 10 ft wide, and 15 ft long. The pool is filled with water to 1 ft below the top.  If the weight density of water is 62.4 lb / ft3 and if x = 0 corresponds to the bottom of the tank, then which of the following represents the work done (in ft-lb) in pumping all the water into a drain at the top edge of the pool?
Liver paste for sandwiches. Chubby liver sausages (assume cylindrical, 5 cm across, 10 cm long), originally...
Liver paste for sandwiches. Chubby liver sausages (assume cylindrical, 5 cm across, 10 cm long), originally at 20 C, are to be processed in an autoclave kept at 115 C, and we want every part of the sausage to reach 105 C. Estimate the lowest temperature of the sausage after 3 h in the autoclave. Data: For food products containing a water fraction x, we have the following estimates: Cp= 4184x + 800(1-x) , J=kg K k = 0.56x +...
A 10-cm-long thin glass rod uniformly charged to 15.0 nC and a 10-cm-long thin plastic rod...
A 10-cm-long thin glass rod uniformly charged to 15.0 nC and a 10-cm-long thin plastic rod uniformly charged to - 15.0 nC are placed side by side, 4.20 cm apart. What are the electric field strengths E1 to E3 at distances 1.0 cm, 2.0 cm, and 3.0 cm from the glass rod along the line connecting the midpoints of the two rods? Specify the electric field strength E1 Specify the electric field strength E2 Specify the electric field strength E3
A 10-cm-long thin glass rod uniformly charged to 5.00 nC and a 10-cm-long thin plastic rod...
A 10-cm-long thin glass rod uniformly charged to 5.00 nC and a 10-cm-long thin plastic rod uniformly charged to - 5.00 nC are placed side by side, 4.40 cm apart. What are the electric field strengths E1 to E3 at distances 1.0 cm, 2.0 cm, and 3.0 cm from the glass rod along the line connecting the midpoints of the two rods? Specify the electric field strength E1 Specify the electric field strength E2 Specify the electric field strength E3
A 10-cm-long thin glass rod uniformly charged to 14.0 nC and a 10-cm-long thin plastic rod...
A 10-cm-long thin glass rod uniformly charged to 14.0 nC and a 10-cm-long thin plastic rod uniformly charged to - 14.0 nC are placed side by side, 4.40 cm apart. What are the electric field strengths E1 to E3 at distances 1.0 cm, 2.0 cm, and 3.0 cm from the glass rod along the line connecting the midpoints of the two rods? Specify the electric field strength E1 Specify the electric field strength E2 Specify the electric field strength E3
A 10-cm-long thin glass rod uniformly charged to 7.00 nCnC and a 10-cm-long thin plastic rod...
A 10-cm-long thin glass rod uniformly charged to 7.00 nCnC and a 10-cm-long thin plastic rod uniformly charged to - 7.00 nCnC are placed side by side, 4.10 cmcm apart. What are the electric field strengths E1E1 to E3E3 at distances 1.0 cm, 2.0 cm, and 3.0 cm from the glass rod along the line connecting the midpoints of the two rods? Specify the electric field strength E1, E2, and E3?
A 10-cm-long thin glass rod uniformly charged to 15.0 nC and a 10-cm-long thin plastic rod...
A 10-cm-long thin glass rod uniformly charged to 15.0 nC and a 10-cm-long thin plastic rod uniformly charged to -15.0 nC are placed side by side, 3.50 cm apart. What are the electric field strengths E1 to E3 at distances 1.0 cm, 2.0 cm, and 3.0 cm from the glass rod along the line connecting the midpoints of the two rods? Specify the electric field strength E1 Specify the electric field strength E2 Specify the electric field strength E3
A 10-cm-long thin glass rod uniformly charged to 7.00 nCnC and a 10-cm-long thin plastic rod...
A 10-cm-long thin glass rod uniformly charged to 7.00 nCnC and a 10-cm-long thin plastic rod uniformly charged to - 7.00 nCnC are placed side by side, 4.10 cmcm apart. What are the electric field strengths E1E1 to E3E3 at distances 1.0 cm, 2.0 cm, and 3.0 cm from the glass rod along the line connecting the midpoints of the two rods? Specify the electric field strength E1, E2, and E3.
A 10-cm-long thin glass rod uniformly charged to 15.0 nC and a 10-cm-long thin plastic rod...
A 10-cm-long thin glass rod uniformly charged to 15.0 nC and a 10-cm-long thin plastic rod uniformly charged to - 15.0 nC are placed side by side, 3.80 cm apart. What are the electric field strengths E1 to E3 at distances 1.0 cm, 2.0 cm, and 3.0 cm from the glass rod along the line connecting the midpoints of the two rods? Specify the electric field strength E1 Specify the electric field strength E2 Specify the electric field strength E3
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT