A 300-loop circular armature coil with a diameter of 11.0 cm rotates at 110 rev/s in a uniform magnetic field of strength 0.35 T. Part A What is the rms voltage output of the generator? Express your answer using two significant figures. Π| ΑΣΦ 7.8 10¹ Vrms = Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining ? V

Problem 28.15 ▼ A long pair of insulated wires serves to conduct 27.5 A of dc current to and from an instrument. A third wire is placed in the plane of the two wires shown in the figure parallel and just to the right. Part A Fear Incar If it carries 24.2 A upward, what force per meter of length does it exert on each of the other two wires? Assume it is 2.8 mm from the nearest wire, center to center. Express your answer to two significant figures and include the appropriate units. Submit ▾ Part B Flor lfar Submit HA Provide Feedback Value Request Answer 1 Express your answer to two significant figures and include the appropriate units. HA Value Request Answer www Units ? Units SOME ? Constants | Periodic Table 4 of 5 2.8 mm Next >

A conducting bar sits on top of two parallel rails. A uniform magnetic field B is steady and directed to the right. The bar moves upward with velocity v. What is the polarity of the induced emf in terminals X and Y? X Y O X and Y are at the same potential. X is positive and Y is negative. O Y is positive and X is negative. 1-1

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