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CBSE Class 12-science Answered

pls explain
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Asked by sulaikhasulu393 | 13 Jun, 2020, 02:24: PM
answered-by-expert Expert Answer
The earth's magnetic field is from south to north. To neutralise the earth's magnetic field, the field generated by the current carrying conductor must be equal and opposite to that of the earths magnetic field. now the current is going vertically downwards in the wire, so the direction of magnetic field as seen from the top of the wire is in anticlockwise direction.
Answered by Utkarsh Lokhande | 13 Jun, 2020, 04:33: PM

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CBSE 12-science - Physics
As we know, work done by Magnetic force is always zero in moving a charged particle./So it cannot change speed of charged particle. MY doubt is that, can magnetic force change direction of motion of charged particle?
Asked by yashrajgharte24.12dgatl | 25 Oct, 2021, 06:53: PM
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CBSE 12-science - Physics
Sir , if a magnetic field is increasing in a cylindrical volume at a constant rate. then what will be direction of instantaneous acceleration experienced by an electron placed inside cylinder but not on center?
Asked by yashrajgharte24.12dgatl | 24 Sep, 2021, 04:21: PM
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CBSE 12-science - Physics
pls explain
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Asked by sulaikhasulu393 | 13 Jun, 2020, 02:24: PM
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CBSE 12-science - Physics
Hii
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Asked by jain.pradeep | 27 May, 2019, 06:54: PM
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CBSE 12-science - Physics
What do you mean by magnetic Lorentz force?
Asked by Topperlearning User | 19 May, 2015, 09:44: AM
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CBSE 12-science - Physics
When will be the force experienced by moving charge in a magnetic field maximum and minimum?
Asked by Topperlearning User | 19 May, 2015, 09:47: AM
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CBSE 12-science - Physics
What is the work done by a magnetic field on a moving charge?
Asked by Topperlearning User | 19 May, 2015, 10:16: AM
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CBSE 12-science - Physics
In the expression, F= qvBsinθ  which pair of vectors among Syntax error from line 1 column 56 to line 1 column 97. Unexpected 'mathvariant'., begin mathsize 11px style straight v with rightwards arrow on top end style and begin mathsize 11px style straight B with rightwards arrow on top end style is always perpendicular to each other.
Asked by Topperlearning User | 19 May, 2015, 10:06: AM
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CBSE 12-science - Physics
Deduce an expression for the force experienced by the moving charged particle in a uniform magnetic field?
Asked by Topperlearning User | 19 May, 2015, 10:57: AM
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CBSE 12-science - Physics
State the rule, which governs the direction of the magnetic Lorentz force.
Asked by Topperlearning User | 19 May, 2015, 11:00: AM
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