This preview shows pages 1–3. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: Answer: 1 Question 7 Question: Electromagnetic induction is the 1 . charging of a body with a positive charge 2 . production of current by relative motion between a magnet and a coil 3 . rotation of the coil of an electric motor 4 . generation of magnetic field due to a current carrying solenoid Answer: 2 Question 8 Question: For making a strong electromagnet, the material of the core should be 1 . soft iron 2 . steel 3 . brass 4 . copper Answer: 1 Question 9 Question: You have a coil and a bar magnet. You can produce an electric current by 1 . moving the magnet but not the coil 2 . moving the coil but not the magnet 3 . moving either the magnet or the coil 4 . using another DC source Answer: 3 Question 10 Question: A fuse in an electric circuit acts as a 1 . current multiplication 2 . voltage multiplication 3 . power multiplier 4 . safety device Answer: 4...
View
Full
Document
This note was uploaded on 01/17/2012 for the course MASS COMMU 107 taught by Professor Masror during the Spring '11 term at College of E&ME, NUST.
 Spring '11
 Masror

Click to edit the document details