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The princess and the φ. Consider an LRC series circuit with 80 [mH], 200 [Ω], and 0.50 [μF], connected to an AC voltage source with 104 [rad/s]. What is the phase angle of the circuit?
I'll induce myself na lang. A 80. [H] ideal solenoid carries a time-varying current given by (4.125 × 10-2 [A/s]). What is the self-induced emf after 3.00 [s]?
U pa rin talaga. A coil of inductance 36 [H] achieves a steady current of 50. [mA]. How much magnetic energy is stored in the coil?
In-duce ko ka. Two loops have a mutual inductance of 25.6 [mH]. A constant current of 1.25 [A] is present in one of the coils. What is the induced emf on the other coil?
Two truths, one lie? Which of the following statements is/are TRUE?
I. The work done by an electrostatic electric field in moving a point charge from point a to b does not depend on the path taken.
II. An electrostatic electric field can be produced by changing magnetic field.
III. An induced electric field has no corresponding potential function.
Reminder: No iD, no exam. Consider a charging parallel plate capacitor. Its plates have area and separation distance . What is the maximum displacement current if the electric field between the plates varies according to ?
Where to go? Consider a circular conducting loop on the -plane that is immersed in a magnetic field , where is positive. If is increasing, what is the direction of the induced magnetic field as viewed from the -axis?
Move it. Consider a conducting bar with length 1.0 [m], moving at a speed of 0.25 [m/s] to the right, connected to a 100. [Ω] resistor as shown. The circuit is immersed in a uniform magnetic field with strength 4.0 [T] directed into the page. The bar and connecting wires have negligible resistance. What is the magnitude of the induced current through the resistor?
Last Faraday Night. A galvanometer is connected across a solenoid, which is in a uniform external magnetic field. Which of the following cases will cause a deflection in the galvanometer needle?
I. Gradually decreasing the magnetic field strength to zero.
II. Tilting 60° from horizontal
III. Squeezing the solenoid's cross-sectional area
May butas. A conducting tube with inner radius and outer radius is carrying a current of out of the page that is uniformly distributed along its cross-sectional area. What is the magnetic field at region ? Use a clockwise Amperean loop.