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No. 6 AWG copper wire has an area of 13.30mm2 and the resistivity at 200C is 1.75 x10-6 ohm-cm. Determine the length of No. 6 copper wireof the same temperature to give a resistance of 0.12 ohm.
A coil of copper wire (ρ=10.37 micro-ohm-CM/ft) hasa length of 182.88 meters. What is the length of aluminum conductor(ρ=17 micro-ohm-CM/ft) of the same area and resistance asthose of copper
The resistivity of copper is 1.724 micro-ohm-cm at200C. Determine for copper at 200C the resistance (a) of a cylindrical conductor 1 meter long and having a diameter of 1mm; (b) a rod 2 meters long
In a toaster the heating unit is a Nichrome wire whose resistance is 660 micro-ohm-CM/ft and resistance is 20 ohms.Determine the resistance of copper conductor of equalcross-section, but 10 times as
The specific resistivity of brass is 11.4 micro-ohm-cm. Compare the resistance of brass rod A and B if rod A is 1 meterlong and has an area of 2 sq. cm and rod B is ½ meter longand has an are
A certain appliance has a potential difference of 100volts while getting a current of 1.5 amperes. Calculate the rate at which energy is changing in this appliance.
Design a sequencer using J-K flip flops that has two cycles. The even cycle sequences 0,2,4,6, and repeats. The odd cycle sequences 1,3,5,7, and repeats. An externalinput selects which cycle to perf
Counteris normally stopped, when a momentary switched is pressed thecounter would count. When switch is released counter wouldstop. Realizing that not all random generated numbers would work a Forbi
A three phase star connected load is connected across a three phase balanced supply system. Obtain a set of questions relating to symmetrical components of the line and phase voltages.
Design a 2-stage voltage amplifier, the first stage a common-source and the second a source-follower. The load onthe S-F is 100 ohm, and the signal impedance is 1 K-ohm. The overall voltage gain sho
wo (2) 115 - V incandescent lamps A and B are connectedin series across a 230-V source. if lamp A is rated 75 watts andlamp B is rated 50 watts, determine the current drawn by the series connection.
A Barangay power station supplies 60kW to a load over2,500 ft, 100 mm2, two conductors copper feeder, theresistance of which is 0.078 Ω per 1000ft. The bus bar voltageis maintained constant at
The insulation resistance of a kilometer of the cable having a diameter of 2 cm and an insulation thickness of 2 cm is600 ohms. if the thickness of the insulation is increased to 3 cm, find the insu
Two heating elements which is 500 Ω and 250 Ωare connected in series with temperature coefficient of 0.001 and0.003 Ω per oC, respectively at 20oC. Calculate the effective temperat
The resistance of a copper wire at 30oCis 50Ω. if the temperature coefficient of copperat 0oC is 0.00427, what is the resistance at100oC
Using combination of deposited oxide and polysilicon films, create a mask set and process flow that will produce a wheel that can rotate freely about a hub that extends over the top of the wheel.
Determine the shunt resistance needed to convert a galvanometer to an ammeter with a full scale reading of 10A if the scale requires 2.5mAto cause full deflection with a coil resistance of 10Ω
A circuit is needed to divide a 10 Hz signal down to 1 Hz using only a 7493 4-bit counter. Produce a logic diagram for the design.
determine the series resistance needed to convert a galvanometer to a voltmeter reading 15V on full scale deflection if a current of2.5mA causes full scale deflection and the resistance of the coili
what device is used to extend the range of the DCvoltmeter and how is it connected to the basicmeter and what device is used to extend the range ofthe DC ammeter and how is it connected to thebasic
why is it necessary that an ammeter be a low resistance instrument Why must a voltmeter be a high resistance instrument
what potential difference appears across the galvanometer in;Two 150V voltmeters are being compared; meter A has 5000?/V while meter B has a total meter resistance of 750000-ohm, when the pointer is
Subtraction can be performed easily if the operands arein the 10's complement (radix complement) representation. Inthis representation,the sign digit is 0 for a positive number and 9for a negative n
Design a circuit that generates the 9's complement of a BCD digit. Note that the 9's complement of d is 9-d.
Design a majority of 1s circuit such that the output F is 1when a majority of the inputs X,Y,Z are 1. Simplify thefucion to its minimum form using karnaugh map.