Activation Energy of a Thermistor with P/S & 1 digital meter (C.R.) Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12313
Indian Lab Suppliers supplies the Activation Energy of a Thermistor with P/S & 1 digital meter (C.R.) (Product ID: 12313) as part of its electronics engineering lab equipment range. It determines the activation energy and material constant of a thermistor from its resistance at different temperatures.
Quick Answer
The thermistor sits in an electrically heated oven with a 0-110 °C thermometer. A 1, 2 or 5 V DC supply (10 mA, band-switch selected) drives current through it, read on a 3½-digit digital milliammeter (2 mA range), so its resistance can be worked out at each temperature. For an NTC thermistor R = R0eB/T, so ln R plotted against 1/T gives a straight line of slope B, the material constant, from which the activation energy is found. No other apparatus is needed. The oven gets hot during use.
Key Specifications
| Parameter | Detail |
|---|---|
| Experiments | Activation energy of a thermistor; material constant B |
| Supply | 1, 2 or 5 V DC at 10 mA, selected by band switch |
| Meter | 3½-digit digital milliammeter, 2 mA DC |
| Heating | Electrically heated oven |
| Sensor | Thermistor with leads |
| Thermometer | 0-110 °C |
| Mains | 230 V ±10%, 50 Hz AC; ON/OFF switch and fuse |
Where This Is Used
Used in semiconductor and heat practicals. Related: Application of Thermistors (Product ID: 12322) and Study of Forbidden Energy Gap with P/S & 1 digital meter (C.R.) (Product ID: 12312). Browse the full Electronics Engineering Lab Equipment range or related Physics Lab Equipment products.
Frequently Asked Questions
What graph gives the material constant?
ln R against 1/T; its slope is B.
What test voltages are available?
1, 2 and 5 V DC, selected by band switch.
How is temperature controlled?
With the electrically heated oven, read on a 0-110 °C thermometer.
Related Categories
Electronics Engineering Lab Equipment · Physics Lab Equipment · Electronics Lab Equipment
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