A laser emits a cylindrical beam of light 2.5 mm in diameter. Part A If the average power of the laser is 2.7 mW, what is the rms value of the electric field in the laser bea Express your answer using two significant figures. 196] ΑΣΦ E kv/m
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- Figure R₁ ε # R₂ Z R3 R₁ ▼ Find the following currents. • The current I₁ through the resistor of resistance R₁ = 15.02. • The current I2 through the resistor of resistance R₂ = 45.0 • The current I3 through the resistor of resistance R3 = 20.02. • The current I4 through the resistor of resistance R4 = 25.02. Express your answers in amperes separated by commas. ► View Available Hint(s) I1, I2, I3, I4 = Submit Part D for Palit for Part do for Part redo for art C recerfor Part C keyboard shortcuts for Part C help for Part C Find the following potential differences. • The magnitude of the potential difference AV₁ across the resistor of resistance R₁ = 15.0 S • The magnitude of the potential difference AV₂ across the resistor of resistance R₂ = 45.0 2. • The magnitude of the potential difference AV3 across the resistor of resistance R3 = 20.02. • The magnitude of the potential difference AV4 across the resistor of resistance R4 = 25.02 Express your answers in volts separated by commas.…Part A What diameter should the nichrome wire in the figure (Figure 1)be in order for the electric field strength to be the same in both wires? Express your answer with the appropriate units. • View Available Hint(s) ? Figure 1 of 1 HẢ Nichrome Value mm Aluminum 1.0 mm diameterThe time-averaged intensity of sunlight that is incident at the upper atmosphere of the earth is 1,380 watts/m2. What is the maximum value of the electric field at this location? a. 660 N/C b. 1,950 watts/m2 c. 1,200 N/C d. 840 N/C e. 1,020 N/C
- Part A Light from the sun allows a solar cell to move electrons from the positive to the negative terminal, doing 1.2 × 10-19 J of work per electron. What is the emf of this solar cell? Express your answer to two significant figures and include the appropriate units. HA ? E = Value Units Submit Request Answer Provide FeedbackProblem#2 You want to read a book in your room. To do so, you will hang a lamp of 600 Lumens from the ceiling. You can change the length of the electric wire to better serve your purpose. If you want to have at least an illuminance of 50 lux, what will be the minimum distance between the lamp and you to achieve this goal? Distance rNeeds Complete typed solution with 100 % accuracy.
- Part A An isolated conducting rod of length 8.00 cm is oriented parallel to the x-axis. It moves in the +y-direction at 3.90 m/s in the presence of a uniform magnetic field of magnitude 0.600 T that points in the -z-direction. Find the magnitude of the motional emf in the rod. Express your answer with the appropriate units. HA E- Value Units Request Answer Submit Part B Find the magnitude of the electric field produced in the rod. Express your answer with the appropriate units. HA ? E- Value Units Submit Request Answer Part C Find the direction of the electric field produced in the rod. the +x-direction the -x-direction the +y-direction the -y-direction Submit Request Answer O OG₁ R₁ www R3 The figure above shows a circuit with R₁ = C₂ = 10.0μF, and the ideal battery has emf & state. = 5.00, R₂ 20.0 V. R₂ = www C₂ 10.0Ω, R3 15.092, C₁ 5.00μF, Assume that the circuit is in a steady = = (a) Explain what we mean when we say that "a circuit is in a steady state," and what this assumption specifically implies for the circuit under consideration. (b) Find the current through the battery. (c) Find the voltage across C₁. (d) Find the voltage across C₂.A 5.8-cm-diameter parallel-plate capacitor has a 0.56 mm gap. You may want to review (Pages 884-886) Part A What is the displacement current in the capacitor if the potential difference across the capacitor is increasing at 500, 000 V/s? Express your answer to two significant figures and include the appropriate units. Idisp= μÅ Value Units 11 ?