PHYSICS FORM 5 CHAPTER 3

"a region around a magnetic material or a moving electric charge within which the force of magnetism acts".

This is definition of

• magnetic field

• magnetic charge

• magnet

• electromagnet

"a soft metal core made into a magnet by the passage of electric current through a coil surrounding it".

This is definition of

• magnetic field

• electromagnet

• magnet

• charge

For straight wire carrying conductor, we use _________ to determine the direction of magnetic field

• right hand grip rule

• Fleming's left hand rule

• Fleming's right hand rule

For straight wire carrying conductor, we use right hand grip rule to determine _______.

• direction of electric field

• direction of magnetic field

• direction of force

• direction of current

For the right hand grip rule for a solenoid: The thumb points towards ________ of the magnetic field while

• positive pole

• south pole

• north pole

• negative pole

The right hand grip rule for a solenoid:

The thumb points towards north

pole of the magnetic field while

the other fingers indicate __________.

• the direction of the electron flow in the solenoid

• the direction of the pole in the solenoid

• the direction of the magnet in the solenoid

• the direction of the current in the solenoid

All of the following are application of electromagnet EXCEPT

• microphone

• circuit breaker

• electric bell

• ear phone

Fleming's left hand rule used to determine

• direction of electric current

• direction of pole

• direction of magnetic force

• direction of magnetic field

from your view, find the direction of magnetic force exert by the rod

• to the right

• to the left

• toward you

• away from you

When a current-carrying conductor is in a magnetic field of a permanent magnet, the interaction between the two magnetic fields produce ___________.

• a current on the conductor

• a force on the conductor

• a electricity on the conductor

• a pole on the conductor