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1-If a current carrying conductor is imagined to be held in right hand such that thumb points in direction of current,then wrapped fingers of hand points towards the direction of magnetic field. This is right hand thumb rule
2-concentric circles
application-  MRI
3- a) deflection of compass needle increases
reason- magnetic field is directly proportional to strength of current
b) deflection of compass needle decreases
reason- magnetic field is inversely proportional to distance from conductor

more vertical

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very good

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Very good

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Group 4

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1-If a current carrying conductor is imagined to be held in right hand such that thumb points in direction of current,then wrapped fingers of hand points towards the direction of magnetic field. This is right hand thumb rule
2-concentric circles
application-  MRI SCAN
3-A- deflection of compass needle increases
Reason- magnetic field is directly proportional to strength of current
B- deflection of compass needlle decreases
Reason- magnetic field is inversely proportional to distance from conductor

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Revision answers

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GROUP 2             Very good sania
keep it up

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3. A compass needle is placed near a current carrying wire. What happens to the deflection of the compass needle when  a) Strength of  the current in the wire increases  b) The compass needle is moved away from the wire

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3. A compass needle is placed near a current carrying wire. What happens to the deflection of the compass needle when  a) Strength of  the current in the wire increases  b) The compass needle is moved away from the wire

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2. What is the pattern of magnetic field  lines produced by a straight conductor?                         Any one application of magnetism in medical field.

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2. What is the pattern of magnetic field  lines produced by a straight conductor?                         Any one application of magnetism in medical field.