Hello, this is my 1st time asking a question. May I have some assistance?(adsbygoogle = window.adsbygoogle || []).push({});

I will just copy and paste the question so that I dont mess up anything

1. The problem statement, all variables and given/known data

A single-turn circular loop of radius 0.08 m and resistance 6 is coaxial with a solenoid of length 90 cm and a radius of 0.04 m, with 1950 turns. A variable resistor, as indicated in Fig. 30-37, is varied in such a way that the solenoid current falls linearly from 5 A to 1.4 A in 0.3 sec.

link==> http://www.photodump.com/BroIIy/30-37fig.html [Broken] <==

Figure 30-37

(a) What is the induced current in the loop?

2. Relevant equations

not really sure, if I did know I could solve it.

3. The attempt at a solution

R1 = .08

Resistance = 6

L = .9

R2 = .04

N = 1950

I1 = 5

I2 = 1.4

T = .3

u_o = 4*pi*10^-7

I3 = E / Resistance

E = (Bf - Bo) * A / T (Bf = Magnetic field final, && Bo = Magnetic field initial)

this is where it gets confusing for me

Bf = u_o * N * I2 / L ???

Bo = ???

A = pi * R1^2 ???

is any of this even in the right direction?

Thank you for your time.

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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