Calculate Emf in a magnetic field

AI Thread Summary
To calculate the EMF induced in a rectangular coil rotating in a magnetic field, the area (Φ) is determined using the formula Φ = BA, resulting in 1.25 x 10^-3. The EMF (ε) is then calculated using ε = -N ΔΦ/Δt, where N is the number of loops, which is 150. A mistake was identified in the initial calculation regarding the frequency conversion from Hz to time, which affects Δt. After correcting the number of loops used in the equation, further assistance is sought to achieve the correct answer. Accurate calculations are essential for determining the induced EMF in this scenario.
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Homework Statement


Calculate the EMF induced in a 5.0 cm by 2.5 cm rectancular coil containing 150 loops if it rotates at 28 Hz in a 0.014 T magnetic field

Homework Equations


Φ=BA
ε=-N ΔΦ/Δt

The Attempt at a Solution


Φ=BA
=.05m x .025m =1.25 x 10^-3

ε=-N ΔΦ/Δt
=150 x (1.25x10^-3) / (1/28)? ----> i think this is where my problem is with HzThanks for the help :)
 
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N is 150 and you have used 250 in your equation
 
Oh ooops thanks ok i'll change that but still don't get the right answer
 

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