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Solar physics meeting at IIA, Bangalore

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∂B<br />

1⎡<br />

∂ ∂ ⎤<br />

2 1<br />

+ ( rvrB) + ( vθ<br />

B) = η t( ∇ − ) B + s( Bp. ∇)<br />

Ω<br />

2<br />

∂ t r ⎣<br />

⎢<br />

∂ r ∂<br />

θ<br />

⎦<br />

⎥<br />

s<br />

1 ∂η<br />

t ∂<br />

+ ( rB) ⇒ ∆B ∝ s( Bp. ∇)<br />

Ω∆t<br />

r ∂<br />

r ∂<br />

r<br />

Amplitude of M.C. determines<br />

the strength of toroidal and also<br />

poloidal field<br />

Total suns spot numb ber<br />

Amplitude of meridional circul<strong>at</strong>ion

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