A step-down transformer is used for recharging the batteries of portable devices such as tape players. The turns ratio inside the transformer is $13: 1$ and it is used with $120-\mathrm{V}$ (rms) household service. If a particular ideal transformer draws $0.350 \mathrm{~A}$ from the house outlet, what are (a) the voltage and (b) the current supplied to a tape player from the transformer? (c) How much power is delivered?

Draw a Lewis structure for

CS2.

In the simple AC circuit shown in Figure , $R=70.0 \Omega$ and $\Delta v=\Delta V_{\max } \sin \omega t$. (a) If $\Delta v_R=0.250 \Delta V_{\max }$ for the first time at $t=0.0100 \mathrm{~s}$, what is the angular frequency of the source? (b) What is the next value of $t$ for which $\Delta v_R=0.250 \Delta V_{\max } ?$

The effective nuclear charge (Z$_\text{eff}$) felt by the outermost electrons is the strongest for which of the following elements?

A) F

B) N

C) Be

D) B

E) O

Which of the following elements has the largest electron affinity? The elements are Se, CI, and Br.

You are working in an optical research laboratory. One of your projects involves the use of a double slit through which you pass orange laser light of wavelength 590 nm. Unfortunately, because of budget cuts, there are a lot of researchers in the same room, with lots of equipment stuffed in the room, and, in particular, lots of laser beams flying around the room. One day, you find that a second laser beam of unknown origin and different color is entering your double slit along with your orange beam and you are seeing an interference pattern that is the sum of those due to the two beams. You notice that the combined pattern is pretty much a mess, but wait! The m = 3 maximum of your orange laser beam pattern is pure; there is absolutely no mixture of the other color at that point. From this fact, you determine the wavelength of the offending laser light so that you can figure out which other researcher to ask to modify the aiming of his laser.

Compute the quality factor for the circuits described in Problems Which circuit has the sharper resonance?

A resistor R, inductor L, and capacitor C are connected in series to an AC source of rms voltage $\Delta V$ and variable frequency. If the operating frequency is twice the resonance frequency, find the energy delivered to the circuit during one period.

A $10.0-\Omega$ resistor, 10.0-mH inductor, and $100-\mu \mathrm{F}$ capacitor are connected in series to a 50.0-V (rms) source having variable frequency. If the operating frequency is twice the resonance frequency, find the energy delivered to the circuit during one period.

A series $R L C$ circuit has components with following values: $L=20.0 \mathrm{mH}, C=100 \mathrm{nF}, R=20.0 \Omega$, and $\Delta V_{\max }-100 \mathrm{~V}$, with $\Delta v=\Delta V_{\max } \sin \omega t$. Find (a) the resonant frequency,

The inductance of a solenoid with $450$ turns and a length of $24 \mathrm{~cm}$ is $7.3 \mathrm{mH}$. What is the cross-sectional area of the solenoid?

A solenoid with 475 turns has a length of 6.00 cm and a cross-sectional area of $2.80 \times 10^{-9} \mathrm{m}^{2}$. Find the solenoid's inductance.

A generator connected to the wheel or hub of a bicycle can be used to power lights or small electronic devices. A typical bicycle generator supplies 6.00 V when the wheels rotate at $\omega=20.0$ rad/s. If the generator's magnetic field has magnitude B = 0.600 T with N = 100 turns, find the loop area A.

A generator connected to the wheel or hub of a bicycle can be used to power lights or small electronic devices. A typical bicycle generator supplies 6.00 V when the wheels rotate at $\omega=20.0$ rad/s. Find the time interval between the maximum emf of +6.00 V and the minimum emf of -6.00 V.