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Equation of alternating current is given by I = 10√2 sin(100πt + π/6). If the time taken by current to reach the root mean square value from t=0 is t', then what is the value of t'? |
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Answer» n of ALTERNATING current is given by , where , A we know, = = 10A now, TAKE I = 10A at t = t' then, 10 = 10√2sin(100πt' + π/6) or, 1/√2 = sinπ/4 = sin(100πt' + π/6) or, π/4 = 100πt' + π/6 or, π/12 = 100πt' or, t' = π/1200π HENCE,the value of t' = 1/1200 sec |
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