The ratio of thermionic currents `(I//I_(0))` for a metal when the temperature is slowly increased `T_(0)` to T as shown in figure. (I and `I_(0)` are currents at T and respectively). Then which one is correct?

The current I and voltage V curves for a given metallic wire at two different temperatures T_1 and T_2 are shown in the figure. Then ,

Let i_0 be the thermionic current from a metal surface when the absolute temperature of the surface is T_0 . The temperature is slowly increased and the thermionic current is measured as a function of temperature. Which of the following plots may represent the variation in (i/i_0) against (T/T_0) ?

Let i_0 be the thermionic current from a metal surface when the absolute temperature of the surface is T_0 . The temperature is slowly increased and the thermionic current is measured as a function of temperature. Which of the following plots may represent the variation in (i/i_0) against (T/T_0) ?

The current (i) at time t= 0 and t = oo respectively for the given circuit is :

The current (I) and voltage (V) graphs for a given metallic wire at two different temperature (T_(1)) and (T_(2)) are shown in fig. It is concluded that

The current (I) and voltage (V) graphs for a given metallic wire at two different temperature (T_(1)) and (T_(2)) are shown in fig. It is concluded that

In the circuit shwon in fig. switch S is closed at time t = 0. Let I_1 and I_2 be the currents at any finite time t, then the ratio I_1// I_2

In the circuit shwon in fig. switch S is closed at time t = 0. Let I_1 and I_2 be the currents at any finite time t, then the ratio I_1// I_2