Calculating Current in Resistor of Magnetic Flux Circuit (V=18V, R=30Ω)

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SUMMARY

The discussion focuses on calculating the current in a resistor within a magnetic flux circuit, given a voltage of 18V and a resistance of 30Ω. The user attempts to apply Faraday's law of electromagnetic induction, calculating the induced electromotive force (E) as 0.33V and subsequently the current (I) as 0.011A. However, the user is confused about the discrepancy in their calculations, indicating a need for clarification on the application of the formulae involved in this context.

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  • Basic knowledge of Ohm's Law
  • Familiarity with magnetic flux concepts
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Homework Statement


The circuit shown in Figure encloses an area of 33 cm2. The magnetic flux increases steadily from 0 T to 0.5 T in 5 ms. What is the current in the resistor during this time? (V=18 V, R=30 Ω)
27yv4j.jpg


Homework Equations





The Attempt at a Solution


E = A * (B/T) = 0.0033 * (0.5/0.005) = 0.33 V
I = E/R = 0.33/30 = 0.011A
What am I doing wrong here??
 
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can anyone help me with this pretty pleaseeee...
 
sorry the picture is SO big!
 

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