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Questions and Answers
Which of the following equations represents the relationship between power and energy?
Which of the following equations represents the relationship between power and energy?
- $S = P + jQ$
- $E = \int p(t) dt$ (correct)
- $P = \int p(t) dt$
- $P = UI$
Which sign indicates consumed electric power in a DC power network?
Which sign indicates consumed electric power in a DC power network?
- + (correct)
- /
- *
- -
What is the equation for voltage in a sinusoidal alternating current circuit?
What is the equation for voltage in a sinusoidal alternating current circuit?
- $u(t) = \sqrt{2} I \sin(\omega t)$
- $u(t) = \sqrt{2} U \sin(\omega t)$ (correct)
- $u(t) = \sqrt{2} I \cos(\omega t)$
- $u(t) = \sqrt{2} U \cos(\omega t)$
What is the equation for power in a sinusoidal alternating current circuit?
What is the equation for power in a sinusoidal alternating current circuit?
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What is the equation for reactive power in a sinusoidal alternating current circuit?
What is the equation for reactive power in a sinusoidal alternating current circuit?
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