A current can be produced in a coil of wire _____.
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<span><span>Work from Days:<span><span><span>If A can do a piece of work in n days, then A's 1 day's work =</span></span></span></span><span /></span>
<span><span>Days from Work:<span><span>If A's 1 day's work =</span></span></span></span><span><span><span><span>,<span>then A can finish the work in n days</span></span></span></span><span>Ratio:If A is thrice as good a workman as B, then:Ratio of work done by A and B = 3 : 1.Ratio of times taken by A and B to finish a work = 1 : 3.</span></span>