These coils have a radius R = 33 cm. The distance between the coils is, of course, also d = 33 cm (otherwise they would not form a Helmholtz system). Each coil has 72 turns. As explained above, we will not measure the current but rather the voltage across a 0.01 Ohm shunt. Using all these values, we can obtain a very simple expression for the magnetic field as a function of the shunt voltage: B = (constant)Vshunt What is the value of this constant, in T/V? This is equation 4. Write the expression, with the correct value of the constant, in the appropriate space at the bottom of part 2 in the lab write-up.