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1. |
Find the electric field when the magnetic field is given by 2sin t in air. |
A. | 8π x 10<sup>-7</sup> cos t |
B. | 4π x 10<sup>-7</sup> sin t |
C. | -8π x 10<sup>-7</sup> cos t |
D. | -4π x 10<sup>-7</sup> sin t |
Answer» B. 4‚âà√¨‚àö√ë x 10<sup>-7</sup> sin t | |