A 19.0 mH inductor is connected across an AC generator that produces a peak voltage of 10.5 V.  a) What is the peak current through the inductor if the emf frequency is 100 Hz? (3 points)   b) What is the peak current through the inductor if the emf frequency is 100 kHz? (3 points)

A 3.0 mH inductor is connected in parallel with a variable capacitor. The capacitor can be varied from 100 pF to 400 pF. a) What is the minimum oscillation frequency for this circuit? (2 points) b) What is the maximum oscillation frequency for this circuit?  (2 points)

A small bar magnet experiences a 2.30×10−2 N

For a science project, you would like to horizontally suspend an 8.5 by 11 inch sheet of black paper in a vertical beam of light whose dimensions exactly match the paper. If the mass of the sheet is 0.80 g, what light intensity will you need? (1 in = 2.54 cm)

A microwave beam with a wavelength of 1.5 cm has an intensity of 30 W/m2. What is the magnetic field amplitude? (

A series RLC circuit attached to a 120 V/60 Hz power line draws 3.00 A of current with a power factor of 0.890. What is the value of the resistor?

Assume that a 7.0 cm diameter, 100 W light bulb radiates all its energy as a single wavelength of visible light. (

A 22.0 nF capacitor is connected across an AC generator that produces a peak voltage of 4.30 V. At what frequency  is the peak current 42.0 mA?

a) What current is needed to generate the magnetic field strength of 1.0 T at a point 1.1 cm from a long, straight wire? (

Power: A series circuit consists of a 50-Hz ac source, a 40-Ω resistor, a 0.30-H inductor, and a 60-μF capacitor. The rms current in the circuit is measured to be 1.6 A. What is the power factor of the circuit?