Related Questions

Hall effect is observed in a specimen when it is carrying current and is placed in a magnetic field. The resultant electric field inside the specimen is
A Normal to both current and magnetic field
B In the direction of current
C Antiparallel to magnetic field
D In arbitrary direction
When a current carrying conductor is brought into magnetic field, the force that moves the conductor depends upon
A The value of current
B The weight of the conductor
C The direction of the conductor
D None of the above
A conductor of length L has current I passing through it, when it is placed parallel to a magnetic field. The force experienced by the conductor will be
A Zero
B BLI
C B2LI
D BLI2
The length of a rectangular hall is 5m more than its breadth. The area of the hall is 750m^2. The length of the hall is :
A 15m
B 22.5m
C 25m
D 30m
The length of the rectangular hall is 5 m more than its breadth. The area of the hall is 750 m². The length of the hall is: 
A 15 m
B 22.5 m
C 25 m
D 30 m
In electric press, mica is used because it is _______ conductor of heat but/and________ conductor of electricity.
A bad, good
B bad, bad
C good, bad
D good, good
A moving magnetic field will produce the same effect as a conductor that is moving.
A True
B False
An uncharged conductor is placed near a charged conductor, then
A the uncharged conductor gets charged by conduction
B the uncharged conductor gets charged by induction and then attracted towards the charging body
C the uncharged conductor is attracted first and then charged by induction
D it remains as such
Electron current is flowing through a conductor in a direction you might describe as straight into this page. What is the direction of the resulting magnetic field?
A Clockwise
B Counterclockwise
C Out of this page
D Into this page
E None of the above
A hall is 15 m long and 12 m broad. If the sum of the areas of the floor and the ceiling is equal to the sum of the areas of four walls, the volume of the hall is?
A 720 m3
B 1200 m3
C 900 m3
D 1800 m3

Next steps