<P> The intensity of the field is often measured in gauss ( G ) , but is generally reported in nanoteslas ( nT ) , with 1 G = 100,000 nT . A nanotesla is also referred to as a gamma ( γ ) . The tesla is the SI unit of the magnetic field , B . The Earth 's field ranges between approximately 25,000 and 65,000 nT ( 0.25 -- 0.65 G ) . By comparison , a strong refrigerator magnet has a field of about 10,000,000 nanoteslas ( 100 G ) . </P>
<P> The intensity of the field is often measured in gauss ( G ) , but is generally reported in nanoteslas ( nT ) , with 1 G = 100,000 nT . A nanotesla is also referred to as a gamma ( γ ) . The tesla is the SI unit of the magnetic field , B . The Earth 's field ranges between approximately 25,000 and 65,000 nT ( 0.25 -- 0.65 G ) . By comparison , a strong refrigerator magnet has a field of about 10,000,000 nanoteslas ( 100 G ) . </P>
what is the value of earth 's magnetic field
what is the value of earth 's magnetic field
between approximately 25,000 and 65,000 nT ( 0.25 -- 0.65 G )
between approximately 25,000 and 65,000 nT ( 0.25 -- 0.65 G )