please solve this question ASAP
Attachments:
Answers
Answered by
1
When the switch is open
Total resistance is 4R (Three bulbs and internal resistance in series)
Power is (E*E) /4R
When the switch is closed
Total resistance is
(3R)||(3R) +R
which is equal to (3R)/2 +R= (5R)/2
Power is (E*E*2)/5R
Hence Ratio of powers is 5/8
Similar questions
Social Sciences,
4 months ago
Science,
4 months ago
Geography,
9 months ago
Hindi,
1 year ago
Math,
1 year ago