How Do You Calculate Charge and Electrons for a Hair Dryer Drawing 9.7 A?

In summary: Just make sure to mention that you were sick and weren't able to work on it. In summary, a hair dryer has a current of 9.7 A and in 3.5 min, a charge of C passes through it. This represents electrons. It is important to have a basic understanding of units and definitions in order to solve simple problems like these. Being sick can make it difficult to catch up on missed material, but it is always worth asking for a deadline extension if needed.
  • #1
aznangelcakes
2
0
A hair dryer draws a current of 9.7 A.

(a) How much charge passes through the hair dryer in 3.5 min?
C
(b) How many electrons does this represent?
electronsi am sick and i have the homework due tomorrow so i really have no idea how to do it.
 
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  • #2
That you don't know how to do a shows a serious lack of understanding of a concept like current. So I suppose that you first read your text or my post here so that you know what you are talking about. Hopefully you will then see that a) is extremely easy, once you get the definitions right.
 
  • #3
Look at the units of an Ampere.
Look at the charge per electron in Coulombs.

These are very basic questions to see if you understand the meanings of the quantities. If you understand then the solution is relatively obvious. Look up the definition of units of current in your textbook.
 
  • #4
yup thanks compu chimp i get it now :)...ive been sick for a week fyi ><
 
  • #5
Being sick is annoying (apart from the fact that you're not feeling well for a while, of course), because you have to catch up with a lot of material.

BTW, if sickness prevents you from handing in your homework in time, you can always ask your teacher to grant you a delay.
 

FAQ: How Do You Calculate Charge and Electrons for a Hair Dryer Drawing 9.7 A?

What is current?

Current is the flow of electric charge through a conductor. It is measured in amperes (A) and is represented by the symbol "I".

What is resistance?

Resistance is the measure of opposition to the flow of electric current. It is measured in ohms (Ω) and is represented by the symbol "R".

How are current and resistance related?

According to Ohm's Law, current is directly proportional to voltage and inversely proportional to resistance. This means that as resistance increases, current decreases, and vice versa.

What factors affect resistance?

Resistance is affected by factors such as the material of the conductor, its length, and its cross-sectional area. As the length of a conductor increases, resistance also increases, while a larger cross-sectional area decreases resistance.

How can we calculate current and resistance in a circuit?

To calculate current in a circuit, we use Ohm's Law: I = V/R, where V is the voltage and R is the resistance. To calculate resistance, we use the formula R = V/I, where V is the voltage and I is the current.

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