How do you expect the magnetic field to depend on the current through the coil?

Question

How do you expect the magnetic field to depend on the current through the coil? Connect a coil to the power amplifier output and set it up to generate a triangular wave of amplitude 10 V and frequency 0.01 Hz with sampling frequency 20 Hz. Create a graph of the magnetic field as a function of the current through the coil. Tare the Hall probe, place the ruler with the probe so that it is supported by Styrofoam blocks and the probe is in the center of the coil. Take measurements for one period and resize the graph appropriately before saving it. Describe how the magnetic field depends on the current and compare with your prediction. What do you expect to happen when you reverse the direction of the current, for example by exchanging the connecting wires?

Explanation / Answer

2) According to right hand rule, If we stretch the thumb of our right hand in the direction of current, then curlrd finger represents the direction of magnetic field and vice versa.

So If the direction of current reverses, the direction of magnetic field is also reverses.

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