Questions
Electric bulbs 50 W-100 V glowing at full power are to be used in parallel with battery 120 V, . Maximum number of bulbs that can be connected so that they glow in fulI power is
detailed solution
Correct option is C
When each bulb is glowing at fulI power,Current from each bulb =i'=50100 = 12 ASo main current, =i=n2 ampereAlso E=V+ir ⇒ 120=100+ n2 × 10 ⇒ n=4Talk to our academic expert!
Similar Questions
A resistor R is connected across a battery of emf 12 V. It observed that terminal potential differenceis 9 V and the power delivered to resistor is 18 W. Internal resistance of the battery ‘r’ and the resistance R are respectively
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
free study material
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests
