MAGNETIC EFFECTS OF CURRENT(TEST-6)

A uniform electric field and a uniform magnetic field are produced, pointed in the same direction. An electron is projected with its velocity pointing in the same direction ____.
The electron will turn to its right
The electron will turn to its left
The electron velocity will increase in magnitude
The electron velocity will decrease in magnitude
Two particles X and Y having equal charges, after being accelerated through the same potential difference, enter a region of uniform magnetic field and describes circular path of radius  and  respectively. The ratio of mass of X to that of Y is ____.
A beam of ions with velocity  enters normally into a uniform magnetic field of . If the specific charge of the ion is , then the radius of the circular path described is ____.
0.10 m
0.16 m
0.20 m
0.25 m
An electron has mass  and charge  is moving with a velocity of , enters a region where magnetic field exists. If it describes a circle of radius 0.10 m, the intensity of magnetic field must be ____.
If the direction of the initial velocity of the charged particle is perpendicular to the magnetic field, then the orbit is or The path executed by a charged particle whose motion is perpendicular to magnetic field is ____.
A straight line
An ellipse
A circle
A helix
If the direction of the initial velocity of the charged particle is neither along nor perpendicular to that of the magnetic field, then the orbit ____.
A straight line
An ellipse
A circle
A helix
Particles having positive charges occasionally come with high velocity from the sky towards the earth. On account of the magnetic field of earth, they would be deflected towards the ____.
North
South
East
West
Description:

MAGNETIC EFFECTS OF CURRENT

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