Chapter 31223P31.26εθθ=−FHGIKJNddtBANBAtcoscos∆∆ε°×°−===101000300600010012101212.cos.sin......Tm 3.00 mmsVV10.0 AafafIΩFIG. P31.26The flux is into the page and decreasing. The loop makes its own magnetic field into the page bycarrying clockwise current.P31.27ωππ2002400..rev srad revrad sbgbgεω122832BA. mVP31.28(a)BiextextB=±and Bextdecreases; therefore, theinduced field is 00=B±(to the right) and thecurrent in the resistor is directed to the right.(b)extextB±ejincreases; therefore, the inducedfield =+B±is to the right, and the current in
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