It may be desirable to increase the maximum induced current in the brain tissue. In Fig. P29.73, which time-dependent graph of the magnetic field B in the coil achieves that goal? Assume that everything else remains constant. (a) A; (b) B; (c) either A or B; (d) neither A nor B.
Dudaie 1 Physics II Chapter 21 Chapter 21 Electric Current & DirectCurrent Circuits 1. Electric Current a. The flow of electric charge from one place to another is known as electric current i. I=∆Q/∆ t 1. 1 A= 1C/s} ampere or amp b. Often charge is carried by electrons moving through a metal wire i. Do example 211 c. When the charge flows through a closed path and returns to its starting point the closed path is referred to as electric circuit i. In this chapter we consider direct current circuits also known dc circuit is a current in whi