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