expression for the total capacitance of a group of capacitance when (i) they are connected in series (ii) they are connected in parallel. (c) A series combination having R = 2 M Ω and C = 0.01 µF is connected across d.c. voltage source of 50V. Determine capacitor voltage and charging current after 0.02 s‚ 0.04 s and 0.06 s. OR (a) Explain the variations of watt-meter readings for 3-phase power measurement by two watt-meter method as power factor takes the values of unity‚ 0.5‚ between 0.5 & 0 and 0.
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Remote Control For Home Appliances This is a simple remote control circuit based on infrared sensor IC TSOP1738. TSOP1738 contains photo detector and pre-amplifier both in one package. It is a three terminal device. Pin 1 is for ground‚ Pin 2 is for power supply and pin 3 is used as output. Pin diagram of TSOP1738 is shown below. Take care while connecting the pins of TSOP1738. Wrong lead connection of TSOP1738 may lead to sensor damage. CD4017 is a CMOS counter/ divider IC. It takes clock signal
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Plates of a charged capacitor are connected by a voltmeter. If the plates of the capacitor are moved further apart. What will be the effect on the reading of the voltmeter? [1] 2. 3. What is the function of dielectric in a capacitor? A steam of electrons travelling with speed υ m s at right angles to a uniform e v2 = ? m rE [1] [2] electric field E is deflected in a circular path of radius r. Prove that 4. The distance between the plates of a parallel plate capacitor is d. A metal plate
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hi 1. Which of these is not correct as a basic property of electric charges? (a) Total charges in an insulated system is invariable (b) A charged body is electrically unstable (c) * A charged body has equal number of positive and negative charges (d) Positively charged body is deficient of electrons x+q1+q2 = 2 q1 2.Calculate the distance x between charges q1 and q2 shown‚ given the repulsive force between them as 1.2 x 10-4 N‚ take the permittivity of vacuum
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MINISTRY OF SCIENCE AND TECHNOLOGY DEPARTMENT OF TECHNOLOGY AND VOCATIONAL EDUCATION TECHNOLOGICAL UNIVERSITY‚ MAWLAMYINE DEPARTMENT OF ELECTRONIC ENGINEERING PROJECT REPORT ON REGULATED DUAL VOLTAGE DC POWER SUPPLY Supervisor: U Thein Min Wai ABSTRACT The regulated power supply converts the standard 220 volts‚ 50 or 60 Hz AC available at wall outlets into a constants DC voltage. It is one of the most common electronics circuits that we can find. The DC voltage produce
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flyback converters during switch on and off periods‚ respectively‚ it cannot only perform the power transfer during an entire switching period but also achieve the high power factor due to the flyback operation. Moreover‚ since the current balanced capacitor can minimize the offset current through the transformer magnetizing inductor regardless of the AC input voltage‚ the core loss and volume of the transformer can be minimized. Therefore‚ the proposed converter features a high efficiency and high power
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555 timer ic The 555 Timer IC is an integrated circuit (chip) implementing a variety of timer and multivibrator applications. The IC was designed by Hans R. Camenzind in 1970 and brought to market in 1971 by Signetics (later acquired by Philips). The original name was the SE555 (metal can)/NE555 (plastic DIP) and the part was described as "The IC Time Machine".[1] It has been claimed that the 555 gets its name from the three 5 eke resistors used in typical early implementations
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plates of a capacitor hold +2800uC of charge‚ respectively‚ when the potential difference is 930V. What is the capacitance? [pic] How much charge flows from a 12.0-V battery when it is connected to a 12.6 u-F capacitor? [pic] An electric field of 4.80x10^5 V/m is desired between two parallel plates‚ each of area 21.0 cm2 and separated by 0.250cm of air. What charge must be on each plate? [pic] How strong is the electric field between two parallel plates of a 0.80-uF air-gap capacitor if they are
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OBSERVATION The modicom 1 board‚ first in my observation is the power input these are the electrical input connections necessary to power the module. The LJ Technical Systems’ "I.C. Power 60" or "System Power 90" is the recommended power supplies. Then second is the sampling control logic is the circuitry generates the timing and control signals that sample the input waveform‚ and also creates a sinusoidal 1 kHz signal for use during the MODICOM 1 practical exercises. It is recommended that this
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lectrostatics (Q.1) What is the direction of electric field intensity at a point on equatorial line of dipole? ( 1 mark ) (Q.2) Define electric dipole moment? ( 1 mark ) (Q.3) Define electric field intensity? ( 1 mark ) (Q.4) When does a dipole experiences maximum torque placed in uniform electric field? ( 1 mark ) (Q.5) What happens when an electric dipole is placed in non uniform electric field? ( 1 mark ) (Q.6) What is the value of electric field intensity inside a charged conductor? Why
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