MHB Electrical Engineering Problem

AI Thread Summary
The electric oven operates on a 110 V power line with a current of 1.0 A through its resistance heater. The thermal power produced by the heater is calculated using the formula P = I × E, resulting in 110 W. The discussion raises a question about the appropriateness of the problem being posted in the puzzle palace section. The calculation assumes 100% efficiency in converting electrical power to thermal power. The focus remains on the electrical engineering principles involved in determining the power output of the heater.
littlemac1
Messages
1
Reaction score
0
An electric oven is heated using electricity from a 110 V power line. The power line is connected to a resistance heater in the oven, and the current through the heater is found to be 1.0 A. Assuming the heater is 100% efficient in converting electrical power into thermal power, what is the thermal power produced by the thermal element?
 
Mathematics news on Phys.org
$P=I \cdot E = \left(1 \, \dfrac{C}{s}\right) \cdot \left(110 \, \dfrac{J}{C}\right) = 110 \, \dfrac{J}{s} = 110 \, W$

Just noticed this was posted in the puzzle palace ... am I missing something?
 
Last edited by a moderator:

Thread 'Trigonometry problem of interest'

Seemingly by some mathematical coincidence, a hexagon of sides 2,2,7,7, 11, and 11 can be inscribed in a circle of radius 7. The other day I saw a math problem on line, which they said came from a Polish Olympiad, where you compute the length x of the 3rd side which is the same as the radius, so that the sides of length 2,x, and 11 are inscribed on the arc of a semi-circle. The law of cosines applied twice gives the answer for x of exactly 7, but the arithmetic is so complex that the...
View full post »

Similar threads

Heating efficiency of a Heat Pump and a Space Heater
Replies
1
Views
2K
Heating pad element sizing
Replies
13
Views
279
B Question about Thermophotovoltaics (thermal heat engine)
Replies
17
Views
2K
Antique electric railway maintenance equipment
Replies
1
Views
430
Oven controller block diagram, transfer function and temperature calcs
Replies
24
Views
5K
Building a Safe and Efficient Induction Heater Circuit: Tips and Tricks
Replies
7
Views
6K
Harnessing Energy in an Engine: The Secrets of Thermodynamics
Replies
5
Views
2K
B Can a Heat Pump and Stirling Engine Create a Perpetual Energy Cycle?
Replies
6
Views
3K
3 Phase Harmonics and Solid State Relay Issues
Replies
26
Views
3K
Converting a household space heater to DC
Replies
8
Views
3K

Hot Threads

Recent Insights

Back
Top