1. If 48 eV of energy is required to move a charge through a potential difference of 3.2 V, determine the charge involved. [Hint e = 1.6 × 10-¹⁹]

A Si pn junction photodetector has a depletion region of 3 um, a cross sectional area of 3x10 cm, and a minority carrier lifetime of 1 us. Photons of $80 nm and optical power of 24.7 mW are incident on the detector, the detector absorption coefficient at the incident photon wavelength is 0. 7×10 cm. At 300 K temperature the detector photo-current will be? O a. 366.9 A Ob.111.2 pA Oc 210.6 uA Od. 2149 A

2. A B What particle has an electrical charge -1.6-10-¹9 Coulomb? Electron Proton C D Neutron Atom

What will be total charge of an assembly of 100005 electrons?

To the prime high in silicon,ni=1*10^12cc. What is de maximum allowable temperature for silicon?(Eg=1.12eV)

Determine the current flowing in the circuit below. Assume the diode used is Si. N4001 10V RL=1kn 0 mA 2.143 mA 2.036 mA 9.3 mA

2. What is the strength of the electric field 2mm away from a 40uC charge? If a 3uC charge is placed in this field at this distance, what will be the force on it?

In the figure below, calculate the following (use the second diode approximation): Np: Ng 6:1 Vp 120 Vac 60 Hz Vs D₁ D₂ D₂ Vou RL=2000 (d) IL (e) PIV of the diodes (f) fout

What is the magnitude of a point charge that would create an electric field of 5 V/m at points 1 m away Oa. 2.78 nC O b. Zero O c. 2,78 mC O d. 0.556 nC

How many electrons are needed to create a total charge of -2 C?