Ask Questions, Get Answers

Want to ask us a question? Click here
Browse Questions
0 votes

A d.c. main supply of e.m.f. 220 V is connected across a storage battery of e.m.f. 200 V through a resistance of $\;\Omega\;$. The battery terminals are connected to an external resistance ' R ' . The minimum value of ' R ' , so that a current passes through the battery to charge it is :

$(a)\;7\;\Omega \qquad(b)\;9\;\Omega\qquad(c)\;11\;\Omega\qquad(d)\;zero$

Can you answer this question?

Please log in or register to answer this question.

Related questions

Ask Question
student study plans
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App