How a triode functions.
(See attached file for full problem description)
Average angular acceleration 9/3
A) A dentist's drill turns a 0.75 mm diameter bit at 5.0 x 10^5 rev/min. What is the linear speed of the cutting edge? B) When the drill is first turned on it takes about ¼ of a second to come up to full speed. What is the average angular acceleration of the bit? I believe the answer is A) 20 m/s and B) 2.1 x 10^5 rad/s^2. I ...continues
(See attached files for full problem description)
An old analog hand-held cellular telephone operates in the 860 to 900 MHz band and has a power output of 0.600 W from an antenna 10.0 cm long. a. Find the average magnitude of the Poynting vector 4.00 cm from the antenna, at the location of a typical person’s head. Assume that the antenna emits energy with cylindrical wave ...continues
1. This pre-lab explores the characteristics of wires in DC circuits. Keep in mind that an ordinary wire has low but finite resistance. For these questions assume the wire resistance is 0.1 Ohms, the power supply is an ideal 6V voltage source, and the light bulb resistance is 30 Ohms. A. For the circuit below, one such wi ...continues
Electrical circuits with capacitors and resistances. See attached file for full problem description.
Can we make a transistor by connecting two diodes back to back?
Can we make a transistor by connecting two diodes back to back?
The lines show the equipotential contours in the plane of three point charges, Q1, Q2, and Q3. The values of the potentials are in kV as indicated for the +5, 0, and -5 kV contours. The positions of the charges are indicated by the dots. the work required to move a charge of -0.51×10-12C from i to b is 3.06×10-9 J a: Calc ...continues
Find the magnitude of the electric field at point d. (Data: q= 0.750 mC, L= 0.40 m)
