Activity B: Introduction in the 1820s, Oersted first demonstrated that electric

Question

Activity B: Introduction in the 1820s, Oersted first demonstrated that electric currents o fields (you observed this last week in lab!). This discovery linked electric and An EMF can be thought of as a voltage generated by some source, such as a battery or in this case, a changing magnetic flux. This an generate magnetC incuced EMF pushes current around the coil, magnetic phenomena, which were thought to be completely unrelated and the amount of induced current will depend on the resistance of the coil People immediately suggested that, somehow or another, magnets may be able to generete currents. Many experiments were tried, but they all failed to produce any ) Take one of the two 500 turn colls from resuts, because they were lacking one essential ingredient In 1840, Faraday the large drawer and screw it into hole #3 on discovered the key in order to produce electric effects (currents), something had to the gray plastic table using a thumb screw be changing in time The impact of his discovery cannot be understated, it transformed our world. The Shan enire technvological revolution began with this single discoveryl First, some basics Imagine that we have created a magnetic field, and into that freld black and (2) Plug a voltage sensor into Analog Channel A of and plug the red and black leads into the the ScienceWorkshop 750 ports on the 500 turn coll, we have placed a conducting ring, which encloses an aree A The ring may be tilted respectively, as shown below reletive to the feld, so we define the angle betweon the axis of the ring and the magnetic field direction to be o We then define the magnetic flux, a measure of the Area A Voltage sensor "amount of magnetic field "poking through" the area, to be 4: BAcos(0) Now, magnetic flux alone is NOT enough to induce a current in the ringl We're missing the key ingrediont in order to cause current to fiow, the flux must change during some time irterval. Faraday's lava states that 0.g =-/At That is, a rate of change of the magnetic flux causes an induced EMF in the col, wnich produces a

Explanation / Answer

According to Farady Law only a time varying Magnetic Flux will induce the current.If Magnetic Flux is changing with time than it will induce a current in ring.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.