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Four situations are given below- I. An infinitely long wire carrying current II. A rectangular loop carrying current III. A solenoid of finite length carrying current IV. A circular loop carrying current. In which of the above cases will the magnetic field produced be like that of a bar magnet? |
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(a) |
I |
(b) |
I and III |
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(c) |
Only III |
(d) |
Only IV |
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Four situations are given below- I. An infinitely long wire carrying current II. A rectangular loop carrying current III. A solenoid of finite length carrying current IV. A circular loop carrying current. In which of the above cases will the magnetic field produced be like that of a bar magnet? |
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(a) |
I |
(b) |
I and III |
|
(c) |
Only III |
(d) |
Only IV |