Describing the resulting current

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SUMMARY

The resulting current in the circuit is the superposition of two alternating currents, I1 = 2 cos t and I2 = -2 sin t. By applying trigonometric identities, the combined current can be expressed as I_total = 2√2 cos(t + π/4), indicating a maximum current of 2√2, a phase shift of π/4, and a period of 2π. This analysis provides a clear understanding of the behavior of the resulting current over time.

PREREQUISITES
  • Understanding of alternating current (AC) concepts
  • Familiarity with trigonometric identities
  • Knowledge of phase shift and period in waveforms
  • Proficiency in graphing functions using technology
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  • Learn about superposition theorem in electrical circuits
  • Study trigonometric identities for combining waveforms
  • Explore graphing tools for visualizing AC currents
  • Investigate the effects of phase shift on circuit behavior
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Electrical engineers, physics students, and anyone analyzing alternating current waveforms will benefit from this discussion.

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Suppose that the current flowing in an electric circuit is the sum (superposition) of two alternating currents, one given by I1 = 2 cos t and the other given by I2 = −2 sin t at time t. Carefully describe the resulting current in the circuit.
 
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osafi52 said:
Suppose that the current flowing in an electric circuit is the sum (superposition) of two alternating currents, one given by I1 = 2 cos t and the other given by I2 = −2 sin t at time t. Carefully describe the resulting current in the circuit.

What resources/directions have you been given to complete this problem?

Are you to rewrite $I_1+I_2$ in terms of a single trig function and describe the graph of the current sum in terms of max current, phase shift, period, etc.

... or can you just graph the sum using technology to do the above?
 

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