How will the thermionic current vary if the filament current is increased?

Define current.

Define current?

The work function of a thermionic emitter is 4.5 eV . By what factor does the thermionic current increase if its temperature is raised from 1500 K to 2000 K ?

Show a conduction loop placed near a long, straight wire carrying current i as shown. If the current increases continuously, find the direction of the induced current in the loop.

State the factors on which the current sensitivity of a galvanometer is increased.

A current carrying conductro of certain length, kept perpendicular to the magnetic field experiences a force F. What will be the force if the current is increased four times, length is halved and magnetic field is tripled?

In a silicon transistor a change of 7.89 mA in the emitter current produces a change of 7.8 mA in the collector current . What is the change in the base current necessary to produce an equivalent change in the collector current ?

If the current in the circuit for heating the filament is increased, the cutoff wavelength

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) ?