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two very small conducting spheres each of a mass of 1.0*10^-4(kg) are suspended at a common point by very thin nonconducting threads of a length 0.2(m). A charge Q is placed on each sphere> the electric force of repulsion separates the spheres, and an equilibrium is reached when the suspending threads make an angle of 10 degrees. Assuming a gravitational force of 9.80(N/kg) and a negligible mass for the threads, find Q.
Various radio stations in a given geographical region are assigned different carrier frequencies so that the frequency ranges of the signals do not overlap. Suppose that a certain AM radio transmitter has a carrier frequency of 980 kHz.
In transformer designs, often you can find an air gap in the core. In all the electric machines, there is an air gap between the stator and rotor. In both cases, flux will go through both core material and the air gap.
The armture of 2 -pole , 200 volts , wave wound DC machine has 400 conductors and runs at 300 r.p.m . Calculate the useful flux per pole.
(a) What is the peak instantaneous power of the laser (b) If only 100 pulses can be generated per second, what is the average power output of the laser
Assume that an alkaline D-cell battery can maintain an average voltage of 1.25 V for 90 hours in a 10. load before becoming unusable. What average power is delivered to the load during the life of the battery
Each of the protons in a particle beam has a kinetic energy of 3.30 10-15 J. What is the magnitude of the electric field that will stop these protons in a distance of 1.05 m
A sample of vinegar is 4.8% acetic acid, HC2H3O2, by weight, andhas a density of 1.00g/mL. Calculate (a) the grams of acetic acidin 1 liter of vinegar (b) the molarity of acetic acid invinegar. calculate the concentration of an ..
By that I mean, how does IM/IT help KL carry out day-to-day operations and transacting, how does it aid management processes, and does it enable KL product and service innovation?
The electric motors unmanned drones use transformers to produce sufficient current to move the flight surfaces. Due to the weight restrictions of the vehicle, the transformers use a ceramic rather than iron, the ceramic has a permeability of mu = 4..
A 1.0 dc voltage source is connected across a 10 ohm resistor. What is the current through the resistor if (a) the voltage source is ideal (b) the voltage source has internal resistance 0.1 ohm (c) internal resistance 1.0 ohm
a) Consider an n-p-n transistor whose base emitted drop is0.76 at a collector current of 10mA, What current will it conductat Vbe=0.70V. What is the base emitted voltage for ic=10microampere. b)A CE amplifier uses a BJT with B=100, Va=50V, biased a..
A system or component is imaginary (critically ) stable if at least one real part of the roots of the characteristic equation is equal to zero. Determine the stability of the following system and design the circuit.
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