Use the ideal diode equation to calculate the voltage required to produce a current density of 25 A/cm2 for a junction of cross-sectional area 10-4 cm2, a reverse saturation current of 2x10-15 A and at 300 K

Explanation:

First we need to find the value of diode current:

Now, we use ideal diode equation:

where,

Is = saturation current = 2 x 10⁺¹⁵ A

q = charge on electron = 1.6 x 10⁻¹⁹ C

V_D = Diode Voltage = ?

n = ideality factor = 1 (for ideal diodes)

k = Boltzman constant = 1.38 x 10⁻²³ J/k

T = Temperature = 300 k

Therefore,

taking natural log on both sides:

mistakes are ok

the temperature in kelvin of 2.0 dm3 of an ideal gas is doubled and its pressure is increased by a factor of four. what is the final volume of the gas