1 |
The SI unit of magnetic induction is tesla which is equal to |
Newton/ampere-meter or N/A-m
Newton/ampere<sup>2</sup>-meter or N/A<sup>2</sup>-m
Newton/ampere<sup>2</sup>-meter<sup>2</sup> or N/A<sup>2</sup>-m<sup>2</sup>
Newton/ampere<sup>2</sup>-meter<sup>2</sup>or N/A<sup>2</sup>-m<sup>2</sup>
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2 |
The force acting as one meter length of the conductor placed at right angle to the magnetic field, when one A current is passing through it, defines the |
magnetic flux
magnetic induction
magnetic field
self inductance
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3 |
Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as |
IT = 10<sup>-4 </sup>G
IT = 10<sup>5</sup>G
IT = 10<sup>3</sup>G
IT = 10<sup>4</sup>G
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4 |
The force acting on a charge moving in a magnetic field |
is perpendicular to the both magnetic field and direction of motion
is proportional to the magnetic of charges
vanishes when the motion is directly opposite to the direction of field
all of the above
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5 |
'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units? |
0
1
0.5
-1
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6 |
A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is |
minimum
maximum
zero
none of these
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7 |
In a straight current carrying conductor, the direction of magnetic field can be found by |
right hand rule
left hand rule
head to tall rule
none of these
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8 |
The direction of lines of force depends upon the direction of |
voltage
current
charges
none of these
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9 |
The most suitable material for permanent magnet is |
cobalt
iron
steel
alaminium
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10 |
The field around a moving charge is called |
magnetic field
conservative field
non-conservative field
none of these
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11 |
The sources of magnetic field are |
isolated magnetic poles
charges at rest
charges in motion
none of these
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