1. A
   A and C
2. B
   A and B
3. C
   Only B
4. D
   Only A

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1. A
   Solenoid
2. B
   Bar magnet
3. C
   Circular magnet
4. D
   U - shaped magnet

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1. A
   Maxwell
2. B
   Gilbert
3. C
   Michael faraday
4. D
   H.C. Oersted

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1. A
   A wooden piece into it
2. B
   An iron piece into it
3. C
   A glass piece into it
4. D
   Paper roll into it

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1. A
   direction of the current flowing through it
2. B
   number of turns in the solenoid
3. C
   radius of solenoid
4. D
   material of core of the solenoid

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1. A
   Carbon steel, chromium steel
2. B
   Aluminium, cobalt
3. C
   Alnico, Neodymium
4. D
   Tungsten, steel

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1. A
   South pole
2. B
   Zero pole
3. C
   North pole
4. D
   both South pole and North pole

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1. A
   Non - uniform
2. B
   Variable
3. C
   Zero
4. D
   Same at all points

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1. A
   direction of magnetic field
2. B
   direction of the force
3. C
   direction of current
4. D
   direction of induced current

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1. A
   The field consists of straight lines parallel to the wire
2. B
   The field consists of concentric circles centred on the wire
3. C
   The field consists of straight lines perpendicular to the wire
4. D
   The field consists of radial lines originating from the wire

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1. A
   both, direction and magnitude of the induced current
2. B
   direction of the induced current
3. C
   magnitude of the magnetic field
4. D
   magnitude of the induced current

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1. A
   Al, Ni, Na
2. B
   Al, Ni, Co
3. C
   Mg, Mn, Al, Zn
4. D
   Zn, Pb, Al, Ni

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1. A
   (i) straight, (ii) straight
2. B
   (i) circular, (ii) straight
3. C
   (i) circular, (ii) circular
4. D
   (i) straight, (ii) circular

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1. A
   upward
2. B
   towards east
3. C
   towards west
4. D
   downward

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1. A
   10 A
2. B
   15 A
3. C
   20 A
4. D
   5 A

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1. A
   vary continuously
2. B
   reduced considerably
3. C
   does not change
4. D
   increases heavily

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1. A
   Voltage through the solenoid gradually starts to decrease.
2. B
   Electrons start to corrode the solenoid.
3. C
   Resistance of the solenoid increases.
4. D
   Current flowing through the solenoid is saturated.

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1. A
   15 ampere
2. B
   2 ampere
3. C
   5 ampere
4. D
   10 ampere

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1. A
   higher power ratings such as geyser.
2. B
   non - metallic bodies and low power ratings.
3. C
   metallic bodies and low power ratings.
4. D
   lower power ratings such as fan.

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1. A
   Thickness of the magnet
2. B
   Length of the magnet
3. C
   Resistance of it
4. D
   Number of lines crossing a given point

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1. A
   towards south
2. B
   towards north
3. C
   towards west
4. D
   towards east

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1. A
   Parallel straight lines
2. B
   Zig - zag lines
3. C
   Curved line
4. D
   Circular lines

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1. A
   Maxwell
2. B
   Fleming
3. C
   Michael Faraday
4. D
   Oersted

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1. A
   increases as we move towards its end.
2. B
   is zero.
3. C
   decreases as we move towards its end.
4. D
   is same at all points.

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1. A
   fuse
2. B
   earthing
3. C
   use of stabilizer
4. D
   use of electric meter

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