#1 What is the magnitude of the electric field in the rod? A) 1.1 N/C B) 2.2N/C
ID: 1289777 • Letter: #
Question
#1 What is the magnitude of the electric field in the rod?
A) 1.1 N/C B) 2.2N/C C) 3.3 N/C
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#2 The maximum (peak) electric field in a laser beam is measured to be 1650 N/C. If this laser beam is expanded to fill a 12m2, 2 kg, surface with a constant intensity, what is the intensity?
A) 1.20 x 10-5 W/m2 B) 2.41 x 10-5 W/m2 C) 3614 W/m2 D) 7228 W/m2
Please Show work and step by step!!
A conducting rod of length L=27cm moves in a magnetic field of magnitude B=0.55T directed into the plane of the figure. The rod moves with speed v=4m/s in the direction shown. The resistance of the rod is 1.2 ohms #1 What is the magnitude of the electric field in the rod? A) 1.1 N/C B) 2.2N/C C) 3.3 N/C --------------------------------------------------------------------------------------------------------------------- #2 The maximum (peak) electric field in a laser beam is measured to be 1650 N/C. If this laser beam is expanded to fill a 12m2, 2 kg, surface with a constant intensity, what is the intensity? A) 1.20 x 10-5 W/m2 B) 2.41 x 10-5 W/m2 C) 3614 W/m2 D) 7228 W/m2 Please Show work and step by step!!Explanation / Answer
induced emfe = lvB
emf e = 0.27 * 4* 0.55 = 0.594 V
as E = V/d
E = 0.594/0.27
E = 2.2 N/C option IT IS
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APPLY Intensity I = power/area = Emax^2/2uoC
I = 1650(1650)/(2*4pie-7 *3e8)
I = 3614 W/m^2
OPTION c IT IS
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