Final answer:
To find the maximum magnetic field strength created by a girl's heartbeat electromagnetic wave, we can calculate the wavelength using the given information and then use it to find the magnetic field strength.
Step-by-step explanation:
To calculate the maximum magnetic field strength created by a girl's heartbeat electromagnetic wave, we can use the given information. The maximum potential created by the heartbeat is 4.00 mV across 0.300 m of the chest. The wavelength of the electromagnetic wave can be calculated using the formula: wavelength = speed of light / frequency. Using a frequency of 1.00 Hz and the speed of light, we can find the wavelength. Then, we can use the wavelength to find the magnetic field strength using the formula: magnetic field strength = maximum electric field strength / wave impedance.
Calculations:
- Maximum electric field strength = 4.00 mV / 0.300 m = 13.33 V/m
- Wavelength = 3.00 x 10^8 m/s / 1.00 Hz = 3.00 x 10^8 m
- Wave impedance = 3.00 x 10^8 m/s / 13.33 V/m = 2.25 x 10^7 Ω
- Magnetic field strength = 13.33 V/m / 2.25 x 10^7 Ω = 5.91 x 10^-7 T
Therefore, the magnetic field in the girl's heartbeat electromagnetic wave is 5.91 x 10^-7 T.