The magnetic field inside a circular loop of wire of radius 30 cm increases at a constant rate from 2.0 × 10^–3 T to 3.5 × 10^–3 T in 0.47 s. If the resistance of the loop is 0.31 ?, what is the current in the loop?
a. 7.4 × 10^–4 A b. 5.8 × 10^–4 A
c. 2.9 × 10^–3 A d. 5.8 × 10^–3 A
c
Physics & Space Science
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