WorksheetsMagnetic effect of electric current
Total questions: 12
Worksheet time: 4mins
Who was the first to observe the magnetic effect of electric current?
Faraday
Oersted
Volta
Ampere
At the centre of which of the following four circular rings the magnetic field is the strongest for equal magnitude of current?
Loop 1
Loop 2
Loop 3
Loop 4
The direction of the force on a current-carrying wire placed in a magnetic field depends on
the direction of the current
the direction of the field
the direction of current as well as field
neither the direction of current nor the direction of field
Magnetic field inside a long solenoid carrying current is
same at all points (uniform)
different at poles and at the centre
zero
different at all points
The magnetic field lines due to a straight wire carrying a current are
straight
circular
parabolic
elliptical
If current is passed in a spring with a weight hung on it, then the spring
will be compressed
will expand
compression and expansion both will occur
no change in the state of the spring
A straight wire of length 0.5m and carrying current 1.2A is placed in uniform magnetic field of induction 2T, applied perpendicular to the length of the wire. The force on the wire is
2.4 N
1.2 N
3.0 N
2.0 N
If a long copper rod carries a direct current, the magnetic field associated with the current will be
only inside the rod
only outside the rod
both inside and outside the rod
neither inside nor outside the rod
Two particles X and Y having equal charges, and accelerated through same potential and enters the uniform magnetic field describing circular paths of radii R1 and R2. The ratio of their masses of X and Y is :
(R1 / R2) 1/2
R2 / R1
(R1 / R2) 2
(R1 / R2)
The relation ship between current and Electricity is
Electro Mechanical induction
Electro Magnetic Induction
Magneto electric induction
Electro Magno induction
Split ring in an Electric Motor act as
Cumulator
Comulator
commutator
Conductor
What does this diagram represent
Fleming left hand rule
Fleming Right hand rule
Right hand thumb rule
Left hand thumb rule
