- #1
tranceical
- 23
- 2
Hi all,
I have a general query about voltage drops. Below is an example of the sort of question i am dealing with.
If we have:
a series circuit with a 14v dc supply, with a resistor of 200ohms and an inductor with inductance 0.6H
use the exponential equation to work out voltage across the inductor: Vl = (V)e-Rt/l
Q. after 2 time constants (0.005seconds) work out the voltage drop across the inductor?
then for this example i work out that the Voltage after 0.005seconds is 2.6v (1dp)
So surely it follows that 'voltage drop' is equal to 14-2.6v? In some transient examples I've seen they don't seem to do the final sum at the end, hence my confusion.
Thanks a lot for your time and help
I have a general query about voltage drops. Below is an example of the sort of question i am dealing with.
If we have:
a series circuit with a 14v dc supply, with a resistor of 200ohms and an inductor with inductance 0.6H
use the exponential equation to work out voltage across the inductor: Vl = (V)e-Rt/l
Q. after 2 time constants (0.005seconds) work out the voltage drop across the inductor?
then for this example i work out that the Voltage after 0.005seconds is 2.6v (1dp)
So surely it follows that 'voltage drop' is equal to 14-2.6v? In some transient examples I've seen they don't seem to do the final sum at the end, hence my confusion.
Thanks a lot for your time and help