By using the appropriate SI units, show that the units on both sides of Eq. 20.2 (Faraday’s law) are the same.
Answer to relevant Questions(a) In Fig. 20.10, what would happen to the direction of the induced current if the metal rod were moving down-ward instead? (b) What would happen to the direction of the induced magnetic field? Is the induced magnetic ...A metal airplane with a wingspan of 30 m flies horizontally along a north– south route in the northern hemi-sphere at a constant speed of in a region where the vertical component of the Earth’s magnetic field is 5.0 x ...An ac generator operates at a rotational frequency of 60 Hz and produces a maximum emf of 100 V. Assume that its output at is zero. What is the instantaneous emf (a) At t = 1/240 s? (b) At t = 1/120 s? (c) At t? (d) How ...The secondary coil of an ideal transformer has 450 turns, and the primary coil has 75 turns. (a) Is this transformer a (1) step-up or (2) step-down transformer? Explain your choice. (b) What is the ratio of the current in ...An ac generator supplies 20 A at 440 V to a 10 000-V power line through a step-up transformer that has 150 turns in its primary coil. (a) If the transformer is efficient (see Exercise 32), how many turns are in the ...
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