# 溫度係數

$\operatorname{R}(T) = \operatorname{R}(T_0)(1 + \alpha\Delta T)$

## 電阻的溫度係數

$\operatorname{\rho}(T) = \rho_{0}[1 + \alpha_{0}(T-T_{0})]$

$\alpha_{0}=\frac{1}{\rho_{0}}\left [ \frac{\Delta \rho}{\Delta T}\right ]_{T=T_{0}}$

$\rho_{0}$只是對應某一特定溫度（例如T = 0 °C）下的電阻率[1]

$\operatorname{\rho}(T) = S \alpha^{\frac{B}{T}}$

### 電阻的負溫度係數

$R=A \cdot e^{\frac{B}{T}}$

$R = r^{\infty}e^{\frac{B}{T}} = R_{0}e^{-\frac{B}{T_{0}}}e^{\frac{B}{T}}$

## 可逆溫度係數

$RTC = \frac{\Delta Br}{Br \Delta T} \times 100%$

## 核反應度的溫度係數

$\alpha_{T}=\frac{\partial \rho}{\partial T}$

## 參考資料

1. ^ Kasap, S. O. Principles of Electronic Materials and Devices Third. Mc-Graw Hill. 2006: 126.
2. ^ Alenitsyn, Alexander G.; Butikov, Eugene I.; Kondraryez, Alexander S. Concise Handbook of Mathematics and Physics. CRC Press. 1997: 331–332. ISBN 0-8493-7745-5.
3. ^ About Us. Electron Energy Corporation.
4. ^ Duderstadt & Hamilton 1976, pp. 259–261
5. ^ Duderstadt & Hamilton 1976, pp. 556–559
• Duderstadt, James J.; Hamilton, Louis J. Nuclear Reactor Analysis. Wiley. 1976. ISBN 0-471-22363-8.