Faraday's law of induction Example 1: A conducting circuit wound 200 times has a total resistance of 2.0 Ω. Each winding is a square of side 18 cm. A
{"Image DocumentName": "Faraday\u2019s law of induction", "Image ImageDescription": "Example 1: A conducting circuit wound 200 times has a total resistance of 2.0 \u03a9. Each winding is a square of side 18 cm. A uniform magnetic field B is directed perpendicular to the plane of the circuit. If the field changes linearly from 0.00 to 0.50 T in 0.80 s, what is the magnitude of (a) the induced emf E in the circuit (b) the induced electric field E, and (c) the induced current I? Answer: (a) We calculate. d\u03a6B/dt = (dB/dt) (200) (area)= (0.625T/s) (200) (18 cm)2. = 4.05 T \u00b7 m2/s = 4.05 W/s = 4.05 V = E. (The weber W = T \u00b7 m2 is the MKS/SI unit of magnetic flux, and since T = N /(m/s) \u00b7 C = V \u00b7 s/m2, we have W/s = V.)", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}