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WorksheetsMagnetic effects of Current
Total questions: 15
Worksheet time: 7mins
Who was the first to observe the magnetic effect of electric current?
Faraday
Oersted
Volta
Ampere
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
Refer the diagram. The right face of the loop acts as North pole and left side of loop acts as south pole
False
True
Refer the diagram. A wire carries a current, creating a magnetic field around itself as shown. The current in the wire is:
Directed to the right
Directed to the left
Equal to the magnetic field
n the same direction as the magnetic field
The relative strength of the magnetic field is shown by the degree of closeness of the field lines.
false
true
can't say
No two field-lines are found to cross each other.
true
false
Magnetic field is a scalar quantity.
True
False
The magnetic field lines are__________.
curves
closed loops
lines
Magnetic field produced around a straight conductor due to current in it is given by
Fleming's right hand rule
Right hand thumb rule
Clock rule
Fleming's left hand rule
Direction of magnetic field produced by a current carrying loop can be found by using
Fleming's Right hand rule
Clock Rule
Fleming's Left hand rule
Maxwell's corkscrew rule
A freely suspended bar magnet always rest in N-S direction
True
False
Which of the following property of a proton can change while it moves freely in a magnetic field?
Mass and weight
Speed and distance
Velocity and momentum
From this digram which rule is used in case of Electric Motor
Fleming's right hand Rule
Fleming's Left hand Rule
