Class 10 practice problems (18/8/2017)

class 9 practice questions (18/8/2017)

CLASS 9 / PRACTICE PROBLEMS ON 2nd LAW OF MOTION

CLASS 10 / FORCE ON CURRENT CARRYING CONDUCTOR IN MAG FIELD

FORCE ON A CURRENT CARRYING CONDUCTOR

# When current-carrying conductor is placed in a magnetic field, it will experience a force

# THIS CAN BE DEMONSTARTED BY A SIMPLE  ACTIVITY
In this ckt and when current flows, Displacement in wire will be observed, which shows that a current carrying conductor experience a force when kept in magnetic field.

Note:

On reversing the direction of either direction of current OR magnetic field, the direction of force is also reversed

E.g. If current flowing towards to right and the magnetic field is pointing into the paper, the direction of the force is predicted by the Fleming’s left hand rule to be upwards.

PRACTICE PROBLEMS

Q.1) STATE FLEMMINGS LEFT HAND RULE.

Q.2) WHICH RULE YOU WILL USE TO FIND OUT THE DIRECTION OF FORCE EXPERIENCED BY A CURRENT CARRYING CONDUCTOR?

CLASS 9 / WORKSHEET ON FORCE AND TYPES OF FORCE

CLASS 4 / E.V.S / VERTEBRATES ND INVERTEBRATES IMAGES

class 9 / FORCE AND LAWS OF MOTION

VIDEOS ON FORCE------

https://www.youtube.com/watch?v=uoKo3DbfYZk

https://www.youtube.com/watch?v=HCvbN2P_MCY

https://www.youtube.com/watch?v=qkPljy8DskI





VIDEOS ON BALANCED AND UNBALANCED FORCE------

https://www.youtube.com/watch?v=I-iofTyr2VE






VIDEOS ON FIRST LAW OF MOTION--------

https://www.youtube.com/watch?v=LEHR8YQNm_Q

https://www.youtube.com/watch?v=erghLWXDScI


INERTIA-----

https://www.youtube.com/watch?v=sabH4bJsxWA