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
52 views
in Physics by (114k points)
closed by
The dimensional formula for power drawn by an electrical applliance is
1. [M1 L2 T-3]
2. [M1 L0 T-3]
3. [M-1 L2 T-3]
4. [M1 A1 L2 T-3]

1 Answer

0 votes
by (115k points)
selected by
 
Best answer
Correct Answer - Option 1 : [M1 L2 T-3]

The correct answer is option 1) i.e. [MLT-3]

CONCEPT:

  • Power: The rate of work done by an electric current is called power. It is denoted by P.
    • The SI unit of power is the watt (W).

Power dissipation is given by:

Power, P = VI

Where V is the potential difference across resistance, I is current flowing.

EXPLANATION:

  • Power is the electrical work done per unit time.

Power = work done/time

[Power] = [work]/[time] = [M L2 T-2]/[T] = [MLT-3]

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

...