- #1

- 10

- 0

How much energy in Joules does this motor use in 1.50 hour?

thanks in advance..

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- Thread starter aMo0oDi
- Start date

- #1

- 10

- 0

How much energy in Joules does this motor use in 1.50 hour?

thanks in advance..

- #2

- 107

- 0

What have you tried? Do you know what power is?

- #3

- 10

- 0

power has two equations :

1) P(t)= W/t = -PE/t = q.V/t = I.V

2) P= I (I.R)

1) P(t)= W/t = -PE/t = q.V/t = I.V

2) P= I (I.R)

- #4

- 107

- 0

aMo0oDi said:power has two equations :

1) P(t)= W/t = -PE/t = q.V/t = I.V

2) P= I (I.R)

Power can also be expressed as P=V^2/R

Now what is efficiency defined as?

Finally, what information are you given and what can you do with it?

- #5

- 2,001

- 4

If W/t=IVaMo0oDi said:power has two equations :

1) P(t)= W/t = -PE/t = q.V/t = I.V

2) P= I (I.R)

W=J/s

I=Amps

V=Volts

You just plug it in, then find the efficiency.

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