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Industrial Policy - 1948, 1956, 1973, 1977, 1980, 1991Industrial Policy - 1948, 1956, 1973, 1977, 1980, 1991RKavithamani
Magnet
- 4. What affects the strength of magnet?
Material between magnet &
metal.
Concrete slab interrupts field.
Skin,paper do not.
- 11. AURORA
Bright band of light
Deflected charged ions from
sun by the earth magnetic field
Protects Solar Wind