Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
259 views
in Physics by (72.0k points)
closed by
(a) How much current will an electric bulb draw from a `220 V` source, if the resistance of the bulb filament is `1200 Omega` ?
(b) How much current will an electric heater draw from a `220 V` source, if the resistance of the heater coil is `100 Omega` ?

1 Answer

0 votes
by (71.8k points)
selected by
 
Best answer
(a)`" We are given V" = 220 V, R=1200 Omega`
From Eq. (12.6), we have the current I `= 220V//1200 Omega=0.18 A`.
(b) we are given, `V=220 V, R=100 Omega`.
Form Eq. (12.6), we have the current `I= 220 V // 100 Omega = 2.2 A`.
Note the difference of current drawn by an electric bulb and electric heater form the same 220 V source !

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...