Multiple choice question XX — task. Science CBSE, Class 10.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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1. The strength of the magnetic field at a point distance 10 cm from a long straight current carrying wire is B. The field at a distance 5 cm will be

\(\frac{B}{4}\)
\(\frac{B}{2}\)
\(2B\)
\(4B\)

2. A current carrying wire is placed along east-west in a magnetic field directed northwards. If the current in the wire is directed eastwards, what will be the direction of force on the wire?

Due west
Due south
Vertically upwards
Vertically downwards

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20. Multiple choice question XX

Exercise condition: