Question

IGNORE hint. Refers to different problem and please write neatly : )

7) Consider the circuit depicted in Figure 2, in which ε = 54 V and R1 = 0.90 2 (the red arrow indicates the direction of the current). The point labelled x is at a position at a distance r = .15 m above the horizontal wire that closes the circuit on the top side. Assume all the wires are very long, so that this point x is very far away from the other wires in the circuit the two vertical ones with resistors, and the horizontal ones connected Hint: Apply both Right Hand Rules in succession, first to find the direction of the magnetic field cause by 11, then to find the force this causes on 12. to the battery on the lower part). The effect of these other wires on the magnetic field at x is therefore negligible. a) Would the magnetic field at x be pointing into the page" or "out of the page"? b) What should be the value of R2 in order for this magnetic field to be B = 4.8 x 10-5 T?

Answer 1

Solutions 15cm I : 54 0.9+ R2 R=0.9. {2 54U @ According to Right hand thumbrule Beco Magnetic field is going into downwa direction ,e in 6 we know Magnetic field due to Infinitely in the page at point, Magy long wire is ut B Z r is distance from wire 25r 4.8x105 = 2x107 (54 15x10 2 0.9 +R2) & R22 2 854 15x4.8 - - 0.9 2) R22 1.5-0.9 - 0.6s Ang