No products in the cart.

a student has two resistors :- …

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

a student has two resistors :- 2 ohm and 3 ohm she has to put one of them in place of a two as shown in the circuit the current that she need in the entire circuit is exactly 9A show weight calculation which of two resistors should we chose

Posted by Ankit Kumar 5 years ago

CBSE > Class 10 > Science

2 answers

Jay Surya 5 years ago

0Thank You

Yogita Ingle 5 years ago

Battery Source = 12 V

=> V = 12 V

Total Current = 9 A

Total Resistance = R

V = IR

=> 12 = 9R

=> 4 = 3R

=> R = 4/3

R1 & R2 are in Parallel

Hence

1/R = 1/R1 + 1/R2

=> 1/(4/3) = 1/4 + 1/R2

=> 3/4 = 1/4 + 1/R2

=> 2/4 = 1/R2

=> 1/2 = 1/R2

=> R2 = 2

0Thank You

ANSWER

Test

Related Questions

Digestion is begin from in the presence in which enzymes or digestion occur

Posted by Ansh Preet 10 months, 2 weeks ago

CBSE > Class 10 > Science

1 answers

What effect does the concentration of H+(aq) ions have on the nature of the solution

Posted by Tushar Sharma 1 year, 5 months ago

CBSE > Class 10 > Science

2 answers

A current of 5 mili mpr is passing through a wire how many electrons are passing through per minute through the area of cross section of the wire

Posted by Sahana Laskar 10 months, 2 weeks ago

CBSE > Class 10 > Science

0 answers

This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

Few rules to keep homework help section safe, clean and informative.

Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
Ask specific question which are clear and concise.

Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

Posted by Pandey Ji 6 months, 1 week ago

CBSE > Class 10 > Science