Questions
Statement 1: Though the same current flows through the line wires and the filament of the bulb but heat produced in the filament is much higher than that in line wires.
Statement 2: The filament of bulbs is made of a material of high resistance and high melting point.
detailed solution
Correct option is A
As filament of bulb and line wire are in series, hence current through both is same. Now, because H=i2Rt4.2 and resistance of the filament of the bulb is much higher than that of line wires, hence heat produced in the filament is much higher than that in line wires.Talk to our academic expert!
Similar Questions
Permissible current through a fuse wire of diameter 1 mm is 1A. What should be the radius of a fuse wire, made of same material, whose permissible current is 8A ?
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
