Determine curren in a 1500 W water heater connected to 220 V

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Homework Help Overview

The discussion revolves around a problem involving a 1500 W water heater connected to a 220 V source. Participants are exploring the calculation of current, resistance, and thermal energy associated with the heater, while clarifying whether the voltage is AC or DC.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants are attempting to clarify the type of voltage (AC or DC) and its implications on the calculations. Questions about whether to use rms or peak current, and the distinction between reactance and resistance are raised. There is also a focus on ensuring the correct terminology is used, specifically regarding "thermal" energy.

Discussion Status

The discussion is ongoing, with participants providing guidance on looking up basic formulas related to power, voltage, and current. There is a mix of interpretations regarding the nature of the voltage source, with some suggesting it is likely DC due to the lack of additional information.

Contextual Notes

Participants are navigating assumptions about the type of current and the specific formulas to apply, indicating a need for clarity on the problem's setup and constraints.

adrianakarad
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A 1500 W heater is connected to 220 V. Calculate
a) the current in the heater
b) the resistance of the heater
c) the termal energy provided by the heater in 1 hour
 
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Is 220V AC or DC?
If AC;

a) do you want the rms or peak current?
b) the reactance or resistance?
c) did you mean "thermal" energy?

Either way, these question use the very basic formulas for power, voltage and current. Look up the most simplest formulas relating those quantities and attempt the question.
c) tests your understanding of the fundamental definition of power...see what you can find.
 
Don't know if it should be AC or DC...
a) peak current
b) resistance
c) yes, sorry i meant thermal

Thanks.
 
adrianakarad said:
Don't know if it should be AC or DC...
a) peak current
b) resistance
c) yes, sorry i meant thermal

Thanks.

It'll probably be best if you list down the formula's you think you should use, and attempt it..we can tell you if your on the right track then..
 
Sounds like a DC problem to me, just because no other information was given (or at least given in your post)
 

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