A flat circular coil with 130 turns, a radius of 4.99 x 10-2 m, and a resistance of 0.544 2 is exposed to an external magnetic field that is directed perpendicular to the plane of the coil. The magnitude of the external magnetic field is changing at a rate of AB/At = 0.806 T/s, thereby inducing a current in the coil. Find the magnitude of the magnetic field at the center of the coil that is produced by the induced current. Number i Units

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### Current Attempt in Progress

A flat circular coil with 130 turns, a radius of 4.99 x 10^-2 m, and a resistance of 0.544 Ω is exposed to an external magnetic field that is directed perpendicular to the plane of the coil. The magnitude of the external magnetic field is changing at a rate of ΔB/Δt = 0.806 T/s, thereby inducing a current in the coil. Find the magnitude of the magnetic field at the center of the coil that is produced by the induced current.

**Number:** [Input Field]
**Units:** [Drop-down Menu for Units]

**Hint:**
- Use Faraday’s Law of Induction to determine the induced electromotive force (emf).
- Faraday’s Law states that the induced emf in a circuit is equal to the negative rate of change of magnetic flux through the circuit: \( \mathcal{E} = -N \frac{d\Phi_B}{dt} \).
- Ohm's Law relates the induced emf and the induced current: \( \mathcal{E} = IR \).
- The Biot-Savart Law or Ampere's Law can be used to find the magnetic field produced by the induced current.
Transcribed Image Text:### Current Attempt in Progress A flat circular coil with 130 turns, a radius of 4.99 x 10^-2 m, and a resistance of 0.544 Ω is exposed to an external magnetic field that is directed perpendicular to the plane of the coil. The magnitude of the external magnetic field is changing at a rate of ΔB/Δt = 0.806 T/s, thereby inducing a current in the coil. Find the magnitude of the magnetic field at the center of the coil that is produced by the induced current. **Number:** [Input Field] **Units:** [Drop-down Menu for Units] **Hint:** - Use Faraday’s Law of Induction to determine the induced electromotive force (emf). - Faraday’s Law states that the induced emf in a circuit is equal to the negative rate of change of magnetic flux through the circuit: \( \mathcal{E} = -N \frac{d\Phi_B}{dt} \). - Ohm's Law relates the induced emf and the induced current: \( \mathcal{E} = IR \). - The Biot-Savart Law or Ampere's Law can be used to find the magnetic field produced by the induced current.
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