Part A A 1.4 m -long FM antenna is oriented parallel to the electric field of an EM wave. How large must the electric field be to produce a 1.00-mV (rms) voltage between the ends of the antenna? Express your answer using two significant figures. Erms = 7.1×10-4 V/m Submit Previous Answers Part B Correct What is the rate of energy transport per square meter? Express your answer using two significant figures. S = ΕΠΙ ΑΣΦ ? W/m²

A closed curve encircles several conductors. The line integral around this curve Express your answer in amperes. IS $B.dl 3.55x10 4 T.m. A Submit Request Answer Part B If you were to integrate around the curve in the opposite direction, what would be the value of the line integral? Express your answer in tesla-meters. ΑΣΦ 3.55 10 4 T.m Submit Previous Answers Request Answer X Incorrect; Try Again; 9 attempts remaining Check your signs.

A 2.50-m-diameter university communications satellite dish receives TV signals that have a maximum electric field strength (for one channel) of 7.50 (V/m. (See Figure 24.28.) (a) What is the intensity of this wave? (b) What is the power received by the antenna? (c) If the orbiting satellite broadcasts uniformly over an area of 1.501013m2 (a large fraction of North America), how much power does it radiate? Figure 24.28 Satellite dishes receive TV signals sent from orbit. Although the signals are quite weak, the receiver can detect them by being tuned to resonate at their frequency.

Professor Edward Ney was the founder of infrared astronomy at the University of Minnesota. In his later years, he wore an artificial pacemaker. Always an experimentalist, Ney often held a strong laboratory magnet near his chest to see what effect it had on his pacemaker. Perhaps he was using the magnet to throw switches that control different modes of operation. An admiring student (without an artificial pacemaker) thought it would be fun to imitate this great man by holding a strong magnet to his own chest. The natural pacemaker of the heart (known as the sinoatrial node) carries a current of about 0.5 mA. Estimate the magnetic force exerted on a natural pacemaker by a strong magnet held to the chest. How do you think the student might have felt during the experiment? Explain your geometric assumptions. Hints: See Table 30.1 (page 941) to estimate the magnetic field, and assume the field is roughly uniform. Use Figure P30.58 to estimate the size of the sinoatrial node; your heart is about the size of your fist. FIGURE P30.58

DC Circuits 120. Problem 1.01. For the following circuit, let VT = = 24.0 V, R₁ , R₂ = 240. , and R3 2. Solve the circuit. Find the voltages across each resistor V₁, V2, and V3, as well as the current flowing 300. through each resistor I1, I2, I3. - VT R₁ m R2 = R3 m =

Electric field coupling circuit equivalent is shown below. Let Rs = Rs2 = 10 ohms and R = R12 = 100 ohms, C,,=2pF. Calculate the crosstalk due to electric field coupling between these circuits at 100 MHz. RL2 R$2 Rs1 Vs2 Vs! O

In recent years it has been possible to buy a 1.0 F capacitor. This is an enormously large amount of capacitance. Suppose you want to build a 1.1 Hz oscillator with a 1.0 F capacitor. You have a spool of 0.35-mm-diameter wire and a 3.1-cm-diameter plastic cylinder. /myct/itemView?assignment ProblemID=195605802&offset=next F2 # 3 E 80 F3 $ 4 R F FA 5 V T L FS G 6 B ▼ Part A How long must your inductor be if you wrap it with 2 layers of closely spaced turns? Express your answer with the appropriate units. ▸ View Available Hint(s) 1= Value Submit Provide Feedback Y C FO H & 7 HA « N F7 U 4 ** 8 J Units DII F8 M SE ? 9 DD K F9 O ) O 36 A F10 L P S F11 { F12

A 1·21-MF Capacitor is connected to a North American electrical outlet. (Avrms = 120V, f = 60·0Hz). Assuming energy stored in the Capacitor is Zero at + = 0, determine the magnitude & the current in the wires at t = 192 Note 3 Answer must be in A. S the

My question is if there is a building with 1000 windows and the building windows have a dimension of 2 metres width, 4 metres height and a thickness of 1.5 centimetres. It has a thermal conductivity of 0.96. And the temperature outside of the building is 35 degrees and the temperature inside of the building is 24 degrees. What is  power output that AC's in the building must do to maintain the 24 degree temperature?

A radio broadcast antenna is located at the top of a steep tall mountain. The antenna is broadcasting 104.3 FM (in Megahertz) with a mean power of 7 kilowatts. What is the peak voltage generated in a circular loop antenna which is 12 cm in radius (also located 25 km away)?