The direction of propagation of electromagnetic waves is given by the
A) right hand rule.
B) left hand rule.
C) right and left hand rules.
D) None of the other answers given is correct.
A
You might also like to view...
An enclosed chamber with sound absorbing walls has a 2.0 m × 1.0 m opening for an outside window. A loudspeaker is located outdoors, 84 m away and facing the window
The intensity level of the sound entering the window space from the loudspeaker is 56 dB. Assume the acoustic output of the loudspeaker is uniform in all directions and that acoustic energy incident upon the ground is completely absorbed and therefore is not reflected into the window. The threshold of hearing is 1.0 × 10-12 W/m2. The acoustic power output of the loudspeaker is closest to A) 0.035 W. B) 0.070 W. C) 0.18 W. D) 0.35 W. E) 0.70 W.
Propanol (C3H8O) is boiled in a container at 101 kPa and where the surface temperature is 120ºC. Its saturation temperature is 97.4º C and its heat of fusion is 697 kJ/kg. Estimate the heat transfer per unit area.
What will be an ideal response?
A 10-?F capacitor in an LC circuit made entirely of superconducting materials (R = 0 ?) is charged to 100 ?C. Then a superconducting switch is closed. At t = 0 s, plate 1 is positively charged and plate 2 is negatively charged. At a later time, Vab = +10 V. At that time, Vdc is
A. 0 V. B. 3.54 V. C. 5.0 V. D. 7.07 V. E. 10 V.
The weight of a 1-centimer cubed metal cube scaled up by a factor of 10 will be
A) ten times as much. B) a hundred times as much. C) a thousand times as much. D) none of the above