Refer the diagram. A wire carries a current, creating a magnetic field around itself as shown. The current in the wire is:
Directed to the right
Directed to the left
Directed to the left
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15
What areas of a magnet have the strongest magnetic effect?
A)the middle
B) the poles
C) the sides
the poles
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banana
Go to last place!
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fairy
Take points!
5
10
15
20
25
rocket
Go to first place!
Okay!
thief
Give points!
5
10
15
20
25
15
Magnetic poles that are unlike ________and magnetic poles that are alike ___________.
A) run; stay
B)attract; repel
C)stay; repel
D)repel; attract
attract; repel
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15
Magnetic field produced around a straight conductor due to current in it is given by
A)Fleming's right hand rule
B)Right hand thumb rule
C)Clock rule
D)Fleming's left hand rule
Right hand thumb rule
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15
Which of the following correctly describes the magnetic field near a long straight wire?
A)The field consists of radial lines originating from the wire.
B)The field consists of concentric circles centred on the wire.
The field consists of concentric circles centred on the wire.
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banana
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seesaw
Swap points!
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shark
Other team loses 10 points!
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thief
Give points!
5
10
15
20
25
15
A freely suspended bar magnet always rest in N-S direction
True
False
true
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banana
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rocket
Go to first place!
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shark
Other team loses 15 points!
Okay!
banana
Go to last place!
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15
No two field-lines are found to cross each other.
False
True