For a metallic wire, the ratio of voltage to corresponding current is

Question

For a metallic wire, the ratio of voltage to corresponding current is (A) independent of temperature (B) increases with rise in temperature (C) increases or decreases with rise in temperature depending upon the metal (D) decreases with rise in temperature

Tardigrade Admin · Accepted Answer

According to Ohm's law, the ratio of the voltage to the corresponding current is represented as resistance i.e.,

\frac{V}{l} = R

(resistance)
For a metallic wire, with the increase in temperature the resistance also increase due to increased motion of the thermal electrons inside it.

Q. For a metallic wire, the ratio of voltage to corresponding current is

independent of temperature

increases with rise in temperature

increases or decreases with rise in temperature depending upon the metal

decreases with rise in temperature

According to Ohm's law, the ratio of the voltage to the corresponding current is represented as resistance i.e., lV​=R (resistance) For a metallic wire, with the increase in temperature the resistance also increase due to increased motion of the thermal electrons inside it.

According to Ohm's law, the ratio of the voltage to the corresponding current is represented as resistance i.e., $\frac{V}{l} = R$ (resistance)
For a metallic wire, with the increase in temperature the resistance also increase due to increased motion of the thermal electrons inside it.