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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15
The magnetic field lines are__________.
A)curves
B)closed loops
c)lines
Closed loops
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eraser
Reset score!
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gift
Win 5 points!
Okay!
shark
Other team loses 20 points!
Okay!
baam
Lose 25 points!
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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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15
No two field-lines are found to cross each other.
False
True
True
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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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thief
Give points!
5
10
15
20
25
gift
Win 15 points!
Okay!
rocket
Go to first place!
Okay!
banana
Go to last place!
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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
A freely suspended bar magnet always rest in N-S direction
True
False