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1) A charge +2q is placed at the origin and a second charge -q is placed at x = 3.0 cm. Where can a third charge +Q be placed so that it experiences a zero force?
2) A charge of -4.00 micro C is fixed in place. From horizontal distance of 55.0 cm, a particle of mass 2.50*10^-3kg and charge -3.00 micro C is fired with initial speed of 15.0 m/s directly toward the fixed charge. How far does the particle travel before it stops and begins to return back?
3) In the figure, find the magnitude and direction of the electric field at the points A, B, C and D.
4) In question 3), calculate the work done needed to move a 1.5 micro C test charge from point B to D.
The four alkaline battery cells store a total of 200watt-seconds of energy. If the cassette player is drawing a constant 10mA from the battery pack, how long will the cassette operate at normal power
An infinitely long shell with a cylinder shape extends between r = 1m and r =3m has a uniform charge density ρ. Apply gauss's law to find D in all regions.
a) Determine thecurrent through each element and the total power taken by thes eries combination and the power factor of the combination. b) Using the supply-voltage phasor as the reference, sketch a phasor diagram forthe circuit.
Asssume that you are to design a synchronous TDM carrier to support 30 voice channels using 6-bit samples and structure similar toT1.Determine required bit rate
the bridge circuit is energized from a 21 V dc source. the bridge is balanced when R1 = 800Ω, R2 =1200Ω, and R3 = 600Ω. a) what is the value of Rx b) how much current(in milliamperes) does the dc source supply
Problem 1: Determine the design capacity of the unstiffened plate girder web of Grade 300 steel shown in the below figure.
In animation programs, special effects are achieved by changing the properties of objects. What instruction is used to change the opacity and color properties of objects in the Zeus example world?
Suppose that we are designing a cardiac pacemaker circuit. The circuit is required to deliver pulses of 1-ms duration to the heart, which can be modeled as a 500 ohm resistance. The peak amplitude of the pulses is required to be 5 volts.
A control system is needed to control a small shopping center parking lot lighting system and the exterior lighting for the building. The design specifications require that the parking lot lighting and the exterior lighting turn on at dusk automat..
two conducting spheres of radii R1 and R2 that have a very high conductivity are emmersed in a poorly conducting medium of conductivity and permittivity e. the distance d between the spheres is very large in comparison with the radii.
What Role Power factor play in AC circuits and power dissipation ? and What are the Disadvantages of Low Power Factor ??
Prove that the terminals of a voltage controlled current source (VCCS) can be connected so as to form a 2 terminal element that behaves exactly like a resistor.
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