WorksheetsPhysics
Total questions: 11
Worksheet time: 6mins
The current flowing downwards , the direction of magnetic field is
Anti clockwise
In direction of current
Clockwise
None of the above
Near the center of the loop the magnetic field lines are
Concentric
Parallel
Mixed
None of the above
A conducting wire whoes daimeter is less than in comparision to its length is called
Electromagnet
Permanent magnet
Solenoid
None of the above
The magnet used in electric bell
(a)
If the side has current flowing in clockwise direction in a loop then the face has ______ pole
North
South
No pole
None of the above
Select the Similarity between solenoid and bar magnet
A current carring solenoid sets itself in North - South direction when suspended freely .
Its strength of magnetic field can be increased along with of bar magnet
A current carrying solenoid also acquires attractive properties of a magnet
None of the above
Find the value of force when :
I = 4A
B= N 5A-¹m-¹
L= 4 cm
80 N
8 N
8 Nm
None of the above
The phenomenon due to which there is a emf induced in a coil due to change in magnetic flux
Faradays
Induction
Electromagnetism
None of the above
The direction of induced emf is such that it opposes the cause which produces it
Faradays law
Electro magnetism
Lenz law
Moment of force
Flemings right hand rules gives the direction of
The magnetic field
The direction of induced current
The direction of parallel line
None of the above
Current of constant magnitude
Dc current
Ac current
MC current
None of the above
