1
$\begingroup$

A source of power(from a generator,battery,etc...) is used to power a system of any kind. We can calculate the energy used via this formula $E$ = $IV$ x $t$ ?

For example, a battery that is connected to a conductor, that conductor converts electrical energy to heat.

$E_B$ = $P$ x $t$

E - energy used from the batter. t - time the battery is connected to the circuit and current flows.

Is this the only way to model or analyze the energy transferred?

Improve this question
$\endgroup$
1
  • $\begingroup$ If the power is not constant: $E=\int P dt$. $\endgroup$
    – jinawee
    Commented May 16, 2014 at 13:59

1 Answer 1

Reset to default
0
$\begingroup$

You could use $ E = QV $.

This could be helpful if current was changing with time, but you know the amount of charge $Q$ transferred.

For example, in an electroplating or electrolysis application, you may be able to weigh the amount of product (metal plated or gas generated) and determine $Q$ directly without knowing $I$ as a function of time.

Improve this answer
$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.