How can you explain scientifically the generation of high voltage to feed the ignition plugs in car engine about 11KV while the voltage source is a battery 12V

Q: The copper coils of a generator have an equivalent resistance of 10 Ω at 20°C. After being used for…

A: Given,  The resistance of a copper wire at 20° C is 10 ohm.  Let,  at unknown temperature (say t)…

Q: A copper coil, when connected to a 30-volt supply, initially takes a current of 3 A and has a mean…

A: In this question we need to find a temperature coefficient of resistance at 0oC. Let resistance at…

Q: A coil of wire of resistace 50 ohm is embeded in a block of ice. What is the amount of ice melted in…

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Q: Determine the resistance its proper source voltage of 110 V. of a 75-W lightbulb connected to

A: Given: Rating of bulbs, Rated power, P=75 W Source voltage, Vs=110 V

Q: (a).i. An electric heating element to dissipate 580W on 240V is to be made from nichrome ribbon 1mm…

A:

Q: The filament of a 240-volt lamp is to be constructed from a wire having a diameter of 0.02 mm and…

A:

Q: Which one of the following, uses dry wood to get a fuel? O a. Fossil Fuel O b. Fuel cell c.…

A: Fossil fuel like coal came from dry wood

Q: The terminal voltage of a battery is 13.5 v when 5 A current enters its positive terminal, but when…

A: This question belongs to circuit theory . It is based on the concept of EMF of battery and its…

Q: Catalyst Conversion to H,0 Catalyst PEM incel electrolytic efficiency is 0.75/1.23=61.%. How many…

A: Given Data: V = 123 V v = 0.75 v efficiency = 61%

Q: The Thermal Power plant Consumes less amount of fuel when compared to Nuclear Power Plant Select…

A: Coal is used as a fuel in thermal power plants where as uranium is used as fuel in nuclear power…

Q: To measure the resistance of about 8 Q which instrument should be used? Kelvin's double bridge…

A: Given: To measure resistance value of 8 ohm

Q: A current of 2A flows in a wire offering a resistance of 10ohm. Calculate the energy dissipated by…

A: Given: Resistance, R=10 Ω Current, I=2 A Time, t=0.5 hr

Q: An electric heater is constructed by applying a potential difference of 104 V across a wire with a…

A: Given: The applied potential difference is, V=104 V Resistance, R=5 Ω

Q: An 11 W fluorescent lamp is designed to designed to give the same illumination as a 40 W…

A: Given that  price of one unit=0.75$/kwhP1=11WP2=40 W Although  1 year = 21900 hours  Hence energy…

Q: A dc voltmeter connected to terminals ab reads 5 V on the 5 V range. What is the value of the…

A: First find out the current flowing through 60k ohms Here we have 30k and 40k in series. So, same…

Q: (1) A moving coil nstrument whose resistance is 10 2 and has a full-scale deflection when the…

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Q: Q18. For a lead acid battery, you can often use the Peukert prediction to assess the capacity it can…

A: The time taken to discharge the battery is calculated using the expression as shown below:…

Q: An automobile battery has an emf of 14V and an internal resistance of 0.080 0 OHM. The headlights…

A: The solution is given below

Q: QuIz 1 A current of 0.300 A through your chest can send your heart into fibrillation, ruining the…

A: Given,

Q: Define or explain the following terms: d) node e) electric circuit analysis f) current (through…

A: Node : It is a point where two or more than two branches are meeting together .

Q: 2. A platinum coil has a resistance of 3.146 ohms at 40 deg. C and 3.767 ohms at 100 deg. C. Find…

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Q: Find the diameter in inches of 3000ft of copper wire that has a resistance of 77.78Ω

A: Given: Length of copper wire, l=3000 ft=914.4 m Resistance, R=77.78 Ω

Q: An ideal battery of terminal voltage 22 volts charges two practical batteries connected in parallel…

A: Given, Voltage (Vs) = 22 V Practical Batteries specification, V1 = 10 V, R1 = 0.2 Ω V2 = 8 V, R2 =…

Q: Use the following values: r=160 ZR= 4 Ohms Write the final answer to at least 5 significant…

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Q: Sketch a diagram showing the ohmmeter face for a reading of 1.2k ohms. Indicate the setting of the…

A: Ohmmeter:- An ohmmeter is a piece of electrical equipment used to measure electrical resistance.…

Q: A heater with a resistance of 17Ω and a rating of 92W should be supplied by a source voltage…

A: Given: Resistance, R=17 Ω The power rating of the heater, P=92 W

Q: Calculate the current and voltage. Then Obtain the Thévenin equivalent, calculate the current and…

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Q: A low voltage input to a motor will result in overheating. Select one: O True False A 100 watt ligit…

A: Because when we give suply to the motor. Then if voltage is not rated value  then motor not work…

Q: Find the internal resistance of a battery having an emf of 6.00 V if it supplies 2.00 A under load…

A: The battery produces an EMF, that is electromotive force. This EMF acts as a driving force and…

Q: An electrical fan and heater are marked as 100 W and 1000 W respectively at 220 V supply. What will…

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Q: A renowned wind turbine company wants to sell you a wind turbine to go on your roof. They say that…

A: Wind turbine :  the electrical machines which convert wind energy into Electrical energy is called…

Q: "The Physics of Electricity Generation" discuss the nature of the electricity you receive from your…

A: The most common method of the generation of electric power is from mechanical power. In power…

Q: 4. Typical interior LED lightbulbs have a power rating of 19 W. These bulbs have a brightness of…

A: Given: Power rating of LED bulb, P=19W Power rating of filament bulb, P=100W Brightness of 1 bulb or…

Q: The load across a 50.0-V battery consists ofa series combination of two lamps with resistances of…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: An automobile dashboard ammeter shows 10.8 A of current flowing when the headlights are lit. If the…

A: Given data, Voltage from the battery, V = 12 V. Current flowing when headlight are lit, I = 10.8 A.…

Q: An ideal battery of terminal voltage 22 volts charges two practical batteries connected in parallel…

A:

Q: A 25 HP motor located 400 ft from a 240V source is supplied through a copper feeder. it is desired…

A:

Q: A lead acid battery fitted in a truck develops 29V and has an internal resistance of 0.04 ohm.. It…

A: We have an Lead acid battery fitted in a truck witn, Generated Voltage (Eg) = 29 V Internal…

Q: How can I make a regulated power supply with 1N4750A zener diode and 2N3904 transistor using this…

A: BJT and MOSFET are the class of transistors used in analog electronics. They are widely used…

Q: Problem: An emergency backup power source is required for an aircraft. The backup must be able to…

A: Given that  V=30 voltI=200 AI=15 min=0.25 Hr calculate the kWh rating of the required battery backup…

Q: Sketch a diagram showing the ohmmeter face for a reading of 1.2 kQ. Indicate the setting of the…

A: Ohmmeter reading = 1.2 k-ohm Ohmmeter :- The ohmmeter is an electronic device that is used to…

Q: 17. tor the netwoyk i determine the range of v; that will RS=912 maintain V,at 8v and not exceed 个十…

A: Solve the problem

Q: smartphone charger is rated at 24W. It takes 220V AC and converts it to 6V DC to charge a…

A: Given Vin = 220 V AC, Vout = 6V DC, Rated Power = 24 W. Peak current = ?

Q: a $252 1002 10V e 7552 252 h 'f

A:

Q: An electronic device draws 2 A from its 24-volt power source. Find effective resistance.

A: Given, An electronic device draws 2 A current from its 24 volt power source. Please see below for…

Q: Calculate the approximate output power of a PV cell with the area of 10cm*10Cm? a. 150W b. 1.5W c.…

A: 10cm *10cm = 100*100 mm^2

Q: Two coils connected in parallel across 100 V supply mains take 10 A from the line. The power…

A: Given data, Voltage, V = 100 V. Current, I = 10 A. Power in one coil, P1 = 600 W. Let, Current I1…

Q: Find the appropriate effect observed in the power output of a PV module if the parallel resistance…

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Q: smartphone charger is rated at 20.0 W. It takes 220V AC and converts it to 5V DC to charge a…

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Q: Design an ammeter to measure 100mA using a 50μA PMMC meter movement with internal resistance 3k Ω.…

A: Consider the current to be measured is of 200 mA  The range of the PMMC is 50μA The internal…

Power Measurement

According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system will require two wattmeters, and a three-phase and the three-wire system will also require two wattmeters and a three-phase and the four-wire system will require three wattmeter devices. The wattmeter is a device that measures power using one voltage and one current input as shown in the above figure. Multiple current or voltage input pair cables are used by many power analyzers and digital storage oscilloscopes (DSOs) for measuring watts, in effect within a single instrument acting as multiple wattmeters. It is possible to measure three-phase and four-wire power with one correctly specified power analyzer.