Solve this:

Solve this: 169. The current 'i' through a wire varies with time t as shown in the figure. The effective (rms) value of the current is 2 -2 (3) 2+2VäA Sine wave

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The equation of current isi=2+4sinωtso square of rms current is irms2=0Ti2 dtTirms2=0T(4+16sin2ωt+8sinωt) dtTi2rms=0T4dtT+160Tsin2ωtdtT+80TsinωtdtT80TsinωtdtT=0 and 0Tsin2ωtdtT= 0T(1-cos2ωt)dtT=0TdtT-0Tcos2ωtdtT=T2-0=T2i2rms=4+162+0i2rms=12irms=12=23ARegards

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2+2X1.41A
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