Question

A circuit consists of a circular loop of wire with a radius a = 35.5 x 102 m. The circuit has a resistor with a resistance R = 1.8 as shown below. The circuit is entirely immersed a uniform magnetic field whose magnitude changes over time. If the rate of change of the magnetic field is either decreasing (-) or increasing (+) with a AB = -9.6 T/s, Ri X At Buto la page X X X X X X X X X a) find the current induced in the circuit. Write your answer below in mA and to 2 decimal places: (mA = 1 x 10-3 Amps so if you calculator shows you 1.234 x 10.9 multiply your answer by 1000 and enter that, 1.23, in the box below) b) Indicate the direction of the current in your answer as follows: (-) clockwise or (+) counter clockwise.

Answer 1

given a=35.58 102m R=1.81 AB = -9.6 T/s At Х X Cross section Area is, X A= taz A = 4 x(35.5X102)? t first of all find out the induced A=0.3959 m2 empo- E =- A AB At =-(-3559x(-3) (&= 3.8 volt Increed current is, I = E I= 3.8 I = 2.111 A b Direction of current is, (-) clock wise