Physics
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In the circuit below, two series combinations of RL (resistor and inductor) and RC (resistor and capacitor) are connected in parallel to an AC source with a variable frequency. Determine the current provided by the AC source in the case of i) a very low frequency ii) and a very high frequency.
The label on the bottom of an electric kettle indicates that it would draw 3.2 A from a 110-V ac wall socket. Calculate the current amplitude for the electric kettle.
What is the frequency of the current found inside of an AC circuit described by the equation 𝐼 = 2.50⋅\cdotsin(300𝑡), where 𝐼 is in amperes and 𝑡 is in seconds?
What is the rms value of the current for a circuit described by the equation 𝐼=2.20sin(350𝑡), where 𝐼 is in amperes and t is in seconds?
Calculate the maximum distance an average electron would move during an oscillation inside of a silver wire that has a diameter of 2.0 mm, when it is connected to a 1000 W device that is operating at 220 V with the frequency of the AC supply at 50 Hz. Assume that the number density of electrons inside of the silver wire is 5.85 × 1028 electrons/m3.