Questions from Modern Physics

Q: In an L-R-C series circuit, R =

In an L-R-C series circuit, R = 300 Ω, L = 0.400 H, and C = 6.00 * 10-8 F. When the ac source operates at the resonance frequency of the circuit, the current amplitude is 0.500 A. a. What is the volt...

Q: A standing electromagnetic wave in a certain material has frequency 2.

A standing electromagnetic wave in a certain material has frequency 2.20 * 1010 Hz. The nodal planes of B are 4.65 mm apart. Find a. the wavelength of the wave in this material; b. the distance betw...

Q: A ray of light is incident on a plane surface separating two

A ray of light is incident on a plane surface separating two sheets of glass with refractive indexes 1.70 and 1.58. The angle of incidence is 62.0°, and the ray originates in the glass with n = 1.70....

Q: An electromagnetic standing wave in air has frequency 75.0 MHz

An electromagnetic standing wave in air has frequency 75.0 MHz. a. What is the distance between nodal planes of the E field? b. What is the distance between a nodal plane of E and the closest nodal...

Q: A 200-Ω resistor, 0.900-H inductor

A 200-Ω resistor, 0.900-H inductor, and 6.00-µF capacitor are connected in series across a voltage source that has voltage amplitude 30.0 V and an angular frequency of 250 rad/s. a. What are v, vR, v...

Q: In an L-R-C series circuit, L =

In an L-R-C series circuit, L = 0.280 H and C = 4.00µF. The voltage amplitude of the source is 120 V. a. What is the resonance angular frequency of the circuit? b. When the source operates at the re...

Q: You plan to take your hair dryer to Europe, where the

You plan to take your hair dryer to Europe, where the electrical outlets put out 240 V instead of the 120 V seen in the United States. The dryer puts out 1600 W at 120 V. a. What could you do to oper...

Q: A transformer connected to a 120-V (rms) ac

A transformer connected to a 120-V (rms) ac line is to supply 12.0 V (rms) to a portable electronic device. The load resistance in the secondary is 5.00 Ω. a. What should the ratio of primary to seco...

Q: A transformer connected to a 120-V (rms) ac

A transformer connected to a 120-V (rms) ac line is to supply 13,000 V (rms) for a neon sign. To reduce shock hazard, a fuse is to be inserted in the primary circuit; the fuse is to blow when the rms...

Q: A ray of light traveling in water is incident on an interface

A ray of light traveling in water is incident on an interface with a flat piece of glass. The wavelength of the light in the water is 726 nm, and its wavelength in the glass is 544 nm. If the ray in w...