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A resistor carries the current i = 3.0 + 4.0 sin ω t… | StemPy Lab

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A resistor carries the current i = 3.0 + 4.0 sin ω t, in A, a steady part together with an alternating part. What is the rms value of this current?

PhysicsHardHigh School (11–12)Electricity & Magnetism › Alternating Current Electricity & Magnetism › Current Electricity Electricity & Magnetism › Electromagnetic Induction Board Exam A-Level IB

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A resistor carries the current $i = 3.0 + 4.0 \sin \omega t$ , in A, a steady part together with an alternating part. What is the rms value of this current?

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← Assertion: a pure capacitor lets a steady direct current flow for ever. Reason: the reactance of a capacitor, XC = 1/(2π f C), becomes infinite when the frequency is zero.A capacitor draws 0.36 A from a source of fixed voltage at 30 Hz. The frequency is raised to 75 Hz. What current does it draw now? →

More onElectricity & Magnetism › Alternating Current Electricity & Magnetism › Current Electricity Electricity & Magnetism › Electromagnetic Induction

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