.gif)
Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
Physics ECAT Pre Engineering Chapter 15 Electromagnetic Induction Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | Back emf is produced due to | Self induction Mutual induction A.C Lenz's law |
| 2 | The SI unit of magnetic induction is | Weber Weber/meter Henry Tesla |
| 3 | Transformer is used to | Increase alternating current Increase d.c voltage Increase & Decrease emf All answers are right |
| 4 | Lenz's law is the consequence of | Mass Energy conservation Momentum conservation Charge |
| 5 | The change of magnetic flux through a circuit will produce | Magnetic Field Electric Field emf a.c |
