Question

A coil has 200 turns and an area of \( 0.01 \, \text{m}^2 \). If the magnetic field changes from 0 to 0.5 T in 0.1 seconds, what is the induced emf in the coil?

• A. 1 V
• B. 0.5 V
• C. 2 V
• D. 5 V

Hint:

Remember: Faraday's Law gives the induced emf as \( \varepsilon = -N \frac{\Delta \Phi}{\Delta t} \), where \( \Delta \Phi = B A \) is the change in magnetic flux.