A 34 turn circular coil of wire has diameter 1.07 m. It is placed with its axis along the direction of the Earth's magnetic field of 60.0 µT, and then in 0.202 s it is flipped 180°. An average emf of what magnitude is generated in the coil? ε = − dΦB dt = −2Nπr 2B/dt = 16.95 when I used 3.14. I changed 3.14 to 3.141 and entered 16.97 I still get the same error message "Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. mV". Does anyone what is acceptable answer for the question from webassign? Thanks!