Recent content by a_patel32

Okay, I'm still unsure of how to solve this but I understand what you are saying so far, i think.

Oh so after a battery has been used?

Battery "loaded down"? Homework Statement A current of 20 amperes is being drawn from a battery whose emf is 24 volts. The internal resistance of the battery is 0.3 ohms. By how many volts is the battery "loaded down"? Homework Equations V = IR The Attempt at a Solution I...

Great thank you. i just got the answer. This was very helpful. I don't know why I didn't see this before. How are you able to find a solution because when I am taking physics exam I'm not exactly sure how to go about solving problems like these?

Sorry, I'm not sure how to continue beyond this?

Also, the answer given is 8.7 millihenries

Sorry the 20 was the time in the equation, but understand we are talking about the final current. In the exp(-x) it would eventually go down to zero. So it is just going to be I(final) = E/1000?

It would be I(final) = (E/1000)(1 - exp(-20/(L/1000)) ?

Using the second equation? I don't think I can because I need the battery voltage and inductance right?

Homework Statement An inductor is connected in series with a 1000 ohm resistor and a battery. What mus be the inductance in millihenries of the inductor if the current in the circuit is required to reach 90% of its final value after 20 microseconds? Homework Equations I am not actually...