Electric Circuits Answers

The mobility of electron in Si at 300 K is 0.13 m2/V-s. Calculate the diffusion constant of
electron (kB = 1.38 × 10–23 J/K)
(1) 0.0034 m2/s (2) 0.0024 m2/s
(3) 0.0044 m2/s (4) 0.0054 m2/s

The Fermi level of a n-type semiconductor at a temperature of 300 K is at a position 0.3 eV
below the conduction band. Find the position of fermi level at a temperature 320 K wrt to
the conduction band
(1) 0.26 eV (2) 0.28 eV (3) 0.34 eV (4) 0.32 eV

A new revolutionary computer requires 6.5 joules of energy to be stored in a prototype capacitor on its motherboard.
1) If the capacitor in has 0.02 m​2 plates that are 680.76 pm (pico meters) away from one another, determine what dielectric material is in between the plates if the computer was connected to a 100 Volt power supply?

If the capacitor in has 0.02 m​2 plates that are 680.76 pm (pico meters) away from one another, determine what dielectric material is in between the plates if the computer was connected to a 100 Volt power supply?

Capacitor A was measured to have a capacitance of 80nF. If the charge it could hold is 30mC and the plates have a distance of 0.5cm a.) find the voltage that the capacitor was run through and b.) find thr electrice field between theplates. If the circuit diagram below only used a capacitor with the same capacitance as capaticor A. c.) find the total capacitance of the circuit

Two identical cells each of e. m. f E and internal resistance r are first connected in series, and next in parallel. in each case they are applied across the two ends of a wire resistance R. it is found that the same current flows through the wire. what must be the relation between R and r?

acitor A was measured to have a capacitance of 80nF. if the charge it could hold is 30mC and the plates have distance of 0.5cm a) find the voltage that thr capacitor was run through and b) find the electric field between the plates. if the circuit diagram belowonly used a capacitor with the same capacitance of the capacitor A. c) find the total capacitance of the circuit

A lamp is designed to operate on 6V and draw a current of 40 mA. It is connected to 9V. What size resistor must be connected to in series. Hint: find the resistance of the lamp when it is drawing 40 mA.

what is the current flow through minority charge carrier?

Why in P type silicon does not work as N type?