document.write( "Question 1161670: The electrical resistance R of a wire varies directly as the length L and inversely as the square of the diameter d. Obtain an equation connecting R,L and d if R =27 when L=3 and d=2. Calculate (a) value of R when L=8, d=3
\n" ); document.write( "(b) value of d when R=16,L=18
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The electrical resistance R of a wire varies directly as the length L and inversely as the square of the diameter d.
\n" ); document.write( "Obtain an equation connecting R,L and d if R =27 when L=3 and d=2.
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\n" ); document.write( "R = k*L/d^2 ---- k = a constant
\n" ); document.write( "27 = k*3/4
\n" ); document.write( "k = 36
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\n" ); document.write( "Calculate (a) value of R when L=8, d=3
\n" ); document.write( "Sub, do arithmetic
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\n" ); document.write( "(b) value of d when R=16,L=18
\n" ); document.write( "Sub, do arithmetic
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