Physics ECAT Pre Engineering Chapter 14 Electromagnetism Online Test With Answers

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Physics ECAT Pre Engineering Chapter 14 Electromagnetism Online Test

Sr. # Questions Answers Choice
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>
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
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
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
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
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
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
8 The direction of lines of force depends upon the direction of voltage current charges none of these
9 The most suitable material for permanent magnet is cobalt iron steel alaminium
10 The field around a moving charge is called magnetic field conservative field non-conservative field none of these
11 The sources of magnetic field are isolated magnetic poles charges at rest charges in motion none of these
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