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Physics Question on Electromagnetic waves

An electromagnetic wave has electric field given by E→=(9.6j^)sin[2π  30×106t−110x]\overrightarrow E = (9.6 \hat j)sin \bigg[2π\; {30 × 10^6t -\frac{1}{10} x}\bigg], xx and tt are in SI units. The maximum magnetic field is

A

3.2×10–83.2 × 10^{–8}

B

9.6×10–89.6 × 10^{–8}

C

1.7×10–81.7 × 10^{–8}

D

10–710^{–7}

Answer

3.2×10–83.2 × 10^{–8}

Explanation

Solution

The correct option is (A): 3.2×10–83.2 × 10^{–8}