Parts A & B Constants A 15.8-mW laser puts out a narrow bear 2.85 mm in...
A 18.8-mW laser puts out a narrow beam 2.10 mm in diameter. Suppose that the beam is in free space. Part A: What is the rms value of E in the beam? Part B: What is the rms value of B in the beam?
A 14.8-mW laser puts out a narrow beam 2.10 mm in diameter. Suppose that the beam is in free space. What is the rms value of E in the beam? What is the rms value of B in the beam?
A 18.3-mW laser puts out a narrow beam 2.15 mm in diameter. Suppose that the beam is in free space. 1. what is the rms value of E in the beam? 2. What is the rms value of B in the beam?
A laser emits a cylindrical beam of light 2.0 mm in diameter. Part A If the average power of the laser is 2.2 mW , what is the rms value of the electric field in the laser beam? Express your answer using two significant figures. Erms = kV/m
A laser emits a cylindrical beam of light 2.9 mm in diameter. Part A If the average power of the laser is 2.4 mW , what is the rms value of the electric field in the laser beam? Express your answer using two significant figures. Erms = kV/m
An ac voltmeter, which displays the rms voltage between the two points touched by its leads, is used to measure voltages in the circuit shown in the figure(Figure 1). In this circuit, the ac generator has an ims voltage of 8.90 V and a frequency of 25.0 kHz. The inductance in the circuit is 0.250 mH the capacitance is 0.150 F and the resistance is 3.50 2 Part A What is the reading on a voltmeter when it is connected...
A laser emits a cylindrical beam of light 2.6 mm in diameter. If the average power of the laser is 2.4 mW, what is the rms value of the electric field in the laser beam? Express your answer using two significant figures.
A 240 mW vertically polarized laser beam passes through a polarizing filter whose axis is 34 from horizontal. o Part A What is the power of the laser beam as it emerges from the filter? Express your answer to two significant figures and include the appropriate units. MÅ ? P= 160 mW Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining
Part A What is the reactance of a 9.0x10-24F capacitor connected to a 15 kV (rms), 590 Hz line? Express your answer using two significant figures. ΑΣΦ ? XC = 12 Submit Request Answer Part B Determine the frequency and the peak value of the current. Express your answer using two significant figures. TH] ΑΣφ ? f = Hz Submit Request Answer Part C Express your answer using two significant figures. 10 AED ? Ipeak A
A 0.60 mW laser produces a beam of light with a diameter of 1.7 mm . the average intensity of this beam 0.26 kW/m2 At what distance does a 130 W lightbulb have the same average intensity as that found for the laser beam in part (a)? (Assume that 5.0% of the bulb's power is converted to light.)Express your answer using two significant figures. r=__________cm