Graphs - Electromagnetism

Here we are posting all the materials which will help you understand how to sketch the graphs on the concepts of Electromagnetism. All the questions used below are taken from CAIE (Cambridge) board but the same concepts can be applied to answer questions from different boards.

Equations from which proportinoalities were derived in the PDF:

1. Magnetic Flux: $ϕ = B A \sin θ$ $phi = BAsintheta$

2. Magnetic Flux Density: $B = \frac{μ_{o}}{2 π} \frac{I}{x}$ $B = (mu_o)/(2pi)I/x$

3. Induceed EMF: $E = - \frac{d ϕ}{d t}$ $E = -(dphi)/(dt)$

4. Hall Voltage: $V_{H} = \frac{B I}{n e t}$ $V_H = (BI)/(n et)$

5. Maximum Voltage from RMS value: $V_{o} = V_{r m s} \sqrt{2}$ $V_o = V_(rms)sqrt(2)$

There are more equations on which you may get a question but be assured if the same approach is followed then you will end up sketching the correct graph.

PDF file of the solutions shown in the video:

Practice questions for you to attempt:
9702_m16_qp_42 | Q10(b)
9702_s18_qp_42 | Q9(c)
9702_w18_qp_42 | Q9(a)(b)
9702_s20_qp_41 | Q9(aii)
9702_w20_qp_42 | Q9(aii)(b)

Feel free to post any queries related to sketching the graphs on Electromagnetism in the comments below.

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