A metallic wire has a resistance of `3.0 Omega`  at `0^@C` and `4.8 Omega`  at `150^@C`. Find the temperature coefficient of resistance of its material. 

Explanation

To find the temperature coefficient of resistance (α) for the metallic wire, we can use the formula that relates the resistance at two different temperatures:

\[ R_t = R_0 (1 + \alpha \Delta T) \]

Where:
- \( R_t \) = resistance at temperature \( T \) (in this case, at \( 150^\circ C \))
- \( R_0 \) = resistance at reference temperature (in this case, at \( 0^\circ C \))
- \( \alpha \) = temperature coefficient of resistance
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