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If potential difference V applied across a metallic wire is increased by V, how will the drift velocity of the |
becomes half becomes twice becomes four times remains the same |
becomes twice |
Drift velocity $ v_d = \frac{eE\tau}{m}=\frac{eV\tau}{ml}$ $ v_d \propto V$ Since Potential become 2V , Hence drift velocity will become two times. |
