Question

Analysis Questions 1. In this experiment, what steps could be taken to change the magnetic flux through the coil of wire? 2. Does the rate of magnetic flux change døb/dt affect the induced emf in the coil? If yes, how does it affect it? 3. Faraday-Lenz's Law of Electromagnetic Induction is written: E = -1 dos dt where N is the number of loops in the coil. How does your data support Faraday-Lenz's Law? Include here appropriate screenshot(s). 4. How was the emf different when the magnetic flux through the coil was increasing versus when it was decreasing? You may include screenshot(s) here. 5. The negative sign in Faraday-Lenz's Law means that the emf induced in a coil will generate current in the coil that produces a magnetic field opposing the change in flux. How does your data support that statement? You may include screenshot(s) here. PASCO

Answer 1

Well, As from the questions you have asked, this belongs to the Electromagnetic Induction.

1. According to the Faraday's law, we can say whenever we have change of flux linked with a closed loop of conducting wire, then there is an induced emf hence Current in the loop. In order to change the flux of magnetic field line we either change the shape size and position of loop or the source of magnetic field. No matter how we have change in magnetic flux there is an induced emf.  

2. Yes, it is like $\Sigma= - \dfrac{d\Phi}{dt}$ .. More change in flux leads to larger induced emf. The direction of the induced emf hence induced current will be given by Lenz law which suggests the emf should be induced in such a way that it should opposes the cause.

3. Do it yourself.

4. The direction of induced emf and hence current is opposite to the one- another to the both situations (either increasing or decreasing) provided the magnitude of rate of change is same.

5. Do it yourself ( ** well no data provided in order to do any analysis, so first take data....) Activity type Question: Try yourself.

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