FARADAY’S LAW & INDUCED E.M.F
Item Code : SED1003
Principle and Working:
An induced electromotive force (e.m.f) or induced current is generated in a conductor when it is exposed to a changing magnetic field. This phenomenon is described by Faraday’s Law, which relates the rate of change of magnetic flux to the induced voltage.
Lenz’s Law states that the induced current flows in a direction that opposes the change in magnetic flux, ensuring the conservation of energy.
In this setup, a permanent magnet falls through a coil at different velocities, causing a change in magnetic flux, which in turn generates an induced voltage impulse. This impulse is recorded using a voltage probe connected to a data logger and computer interface. The polarity of the induced voltage depends on the orientation of the falling magnet.
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- Data logger with 100k samples per second capacity.
- Coils with different turns (700 & 1150) and gauge (30 & 26).
- Free data analyzing software.
- Digital Timer with navigation keys to work in different modes (Time, Velocity, Acceleration, mask and counter).
- Verification of Faraday and Lenz’s law of induction by measuring the induced voltage as function of time.
- Measurement of the induced voltage impulse as a function of the velocity of the magnet.
- Calculation of the magnetic flux induced by the falling magnet as a function of the velocity of the magnet.
- Dataloger : Up to 100K SPS, memory capacity 800K sample, 6 in-built sensor, 4 ext. sensor port (60+ sensor available), connectivity port micro USB, 90.2 x 90.2 x 20mm(LxWxH), 120gm.
- Voltage Sensor : ± 2.5V (AC/DC), accuracy ± 3%, resolution 1.25mV, input resistance > 1MΩ.
- Digital Timer : 2 line LCD display, resolution 0.1 ms, Mode Time, Speed & Acceleration, USB interface, 5V DC operating voltage.
- Photogate : Detector Infra red, RJ11 connector.
- Coils Set : SWG 30 & 26, L(mm) 75 & 100, turns 700 & 1150, R(Ω) 19 & 13.5, L(mH) 13.8 & 8.8, I(A)max 0.3 & 0.7.
- Magnet : Cylindrical, Size 50x10mm (LxF), Alnico.
| S.No. | Item Name | SED1003 |
| 1 | Acrylic pipe L-300mm | 1 |
| 2 | Adaptor 5V/1A | 1 |
| 3 | Boss head square | 3 |
| 4 | Burette clamp | 1 |
| 5 | Cable for photogate | 1 |
| 6 | Coil-1 (turns 700) | 1 |
| 7 | Coil-2 (turns 1150) | 1 |
| 8 | Cylindrical magnet 100x10mm alnico pair | 1 |
| 9 | Digital timer | 1 |
| 10 | Einstein labmate with micro USB cable | 1 |
| 11 | Fourier sensor cable | 1 |
| 12 | Fourier voltage sensor | 1 |
| 13 | Pen drive for experiment software | 1 |
| 14 | Photogate | 1 |
| 15 | Retort stand base 250x160mm | 1 |
| 16 | Retort stand rod 750×12.5mm | 1 |
| 17 | Rod for photogate | 1 |
| 18 | Three finger clamp | 1 |