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A rado wave's electric field is given by the expression {\overrightarrow E=E\operatorname{sin(kz-ω t)×(^\i+^\jmath)\cdot(a) Find the peak electric field. (b) Give a unit vector in the direction of the magnetic field at a { place and time where \operatorname{sin(kz-ω t) is positive. |
| Answer» A rado wave's electric field is given by the expression {\overrightarrow E=E\operatorname{sin(kz-ω t)×(^\i+^\jmath)\cdot(a) Find the peak electric field. (b) Give a unit vector in the direction of the magnetic field at a { place and time where \operatorname{sin(kz-ω t) is positive. | |