EXAMPLE 4.7 A varying current, with a periodic waveform, flows through an 8 2 resistor in accordance with the following pattern: (a) for the first 0.04 second, it is constant at 6 A ; (b) for the next 0.02 second, it is zero ; (c) for the remaining 0.04 second, it is constant at 2 A in the reverse direction. Determine: (i) the mean value, (ii) the r.m.s. value, (iii) the heat dissipated in the resistor in 5 minutes
EXAMPLE 4.7 A varying current, with a periodic waveform, flows through an 8 2 resistor in accordance with the following pattern: (a) for the first 0.04 second, it is constant at 6 A ; (b) for the next 0.02 second, it is zero ; (c) for the remaining 0.04 second, it is constant at 2 A in the reverse direction. Determine: (i) the mean value, (ii) the r.m.s. value, (iii) the heat dissipated in the resistor in 5 minutes
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Transcribed Image Text:EXAMPLE 4.7
A varying current, with a periodic waveform, flows through an 8 2 resistor in accordance
with the following pattern:
(a) for the first 0.04 second, it is constant at 6 A ;
(b) for the next 0.02 second, it is zero ;
(c) for the remaining 0.04 second, it is constant at 2 A in the reverse direction.
Determine:
(i) the mean value,
(ii) the r.m.s. value,
(iii) the heat dissipated in the resistor in 5 minutes
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