Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

Two resistors with resistances 10 ohm and 15 ohm are to be connected to a battery of emf 12 V so as to obtain :1) minimum current.2) maximum current. A)

How will you connect the resistance in each case . B) Calculate the strength of total current in the circuit in the 2 cases.



This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
For minimum current, Resistance has to be maximum. So they must be connected in series. Total Resistance = 10+15 = 25 ohm
Current, I = 12/25 = 0.48 Amp

For maximum current, Resistance has to be minimum. So they must be connected in parallel. Total Resistance =  \frac{10\times15}{10+15} = 6 ohm
Current, I = 12/6 = 2.0 Amp
2 3 2
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts