| The match, at RFK stadium in Washington D.C., featured two giants of European football, Barcelona and reigning European champs, A.C. Milan. |
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| Thus the frequency of the given a.c. supply will be equal to the frequency of the vibrating string. |
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| In line commutation, advantage of the a.c. supply going through zero value at every half-cycle is taken to commutate the thyristor. |
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