Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

woleraymond

  • 3 years ago

A flashlamp bulb is marked 2.5V, 0.3A and has to be operated from a dry battery of emf 3.0V for the current pd of 2.5V to be produced across it. Why?

  • This Question is Closed
  1. gleem
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    The battery may have an internal resistance such that when the current flow the potential drop across this resistance is large enough to cause the terminal voltage to drop below 2.5 v.

  2. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy