Question

The current in the long wire located at x=-2cm is increasing linearly at a rate of 100A/s. The blue triangle is a loop of wire in the shape of a right triangle. A) What is emf induced in the loop of wire? B)If the wire forming the loop has a resistance per unit length of 10 ohms per meter, what is the magnitude and direction of the current flowing in the loop of wire?

--y=1m Х X2cm x=-2cm

Answer 1

1 yal x=2cm x=-2cm The magnetic field due to carrying wire a distance à is infinitely current aut B. Het 2nd Here the magnetic field directed into the right hand thumb Plane of loop. (By applying rule) from Paradog's low of EMI E- do dt -> E BACOS (180) dt 10² (2x102x1) (-1) E 22 (2) 5) { : Mo I 1) E UrX 10 X 100 101 ах -58 3) E- 2 x 10

Goren R -10 12/ The induced current lind { R lind 2x10 -5 ro -) I ind= 2x100 The direction of induced curent according to Lenz's law is a such a way that it opposes where it has Produced. so the field is directed gf the induced current is to the plane of loop flow anticlockwise the opposes current in the loop then the magnetic field the so direction Find is anticlockwise in loop y = tm I ind nom