PHYSICS : REVISION TEST ON TOPICS OF CLASS XII ---X

An arrangement of two identical circular coils mounted coaxially in series with their centers at a distance apart equal to the radius of each coil is used in
Helmholtz galvanometer
Deflection galvanometer
Series galvanometer
Tangent galvanometer
The line integral of the magnetic induction B around any closed path is equal to  times the net current across the area bounded by this path. It is called
Ampere’s law
Laplace’s law
Gauss’s law
The electric lines of flux leave and terminate on charges while the magnetic lines of flux are_______ closed loops.
Continuous
Discontinuous
Temporary
None of the above
The moving coil galvanometer is most useful for the detection of very small current of the order of
10-2 ampere
10-1 ampere
10-20 ampere
10-8 ampere
The angle between the magnetic meridian and the geographical meridian is called the
Dip angle
Magnetic inclination
Magnetic declination
Slope angle
The work done, by a magnetic force on a charged particle
Is unity
Is zero
Depends on the magnitude of magnetic force
Depends on the magnitude of charge on the particle
“Magnetic properties of matter were the result of tiny atomic currents due to continuous rotation of electrons in atoms about the axis passing through the atomic nuclei” was first suggested by
Coulomb
Ampere
Biot-savart
For the charged particles moving with velocities much smaller than the velocity of light c, the magnetic interaction will be very much _______ than the electric interaction.
Smaller
Larger
Weaker
None of the above
/
Pierre Simon Laplace
Ampere
Biot and Savart
All of the above
For a long straight wire carrying current, I, the value of B is _____for all point at the same distance from the long straight wire
Same
Different
10 wb/m2
None of the above
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TOPICS: MAGNETIC EFFECT OF CURRENT

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Kajal Sengupta
Physics 9th to 12 th grade,CIE, Edexcel, AP, IB , CBSE, ICSE
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