CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

What is the S.I. unit of electrical power?


Open in App
Solution

Step 1: Electric power

  1. Electric power is defined as the rate at which electric energy is transferred across an electric circuit per unit time.
  2. It is a scalar quantity, i.e., it has magnitude only but no particular direction.
  3. The mathematical expression for electric power is P=VI, where P represents electric power, V is the voltage across the circuit, I is the current flowing across the circuit.

An illustrative diagram of an electric circuit carrying electrical energy is given below.

Step 2: SI unit of electric power

  1. Watt or joule per second is the SI unit of electrical power.
  2. The dimension of electric power is [ML2T-3].

flag
Suggest Corrections
thumbs-up
2
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Power
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon