10. Using the electromagnetic theories, explain how an electric bell works. switch spring soft-iron armature contact adjusting screw contact S soft-iron core
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Q: Which of the following is NOT and application of electromagnetic induction? a. anti-theft tags O b.…
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Q: Two coils are placed close together in a physics lab to demonstrate Faraday’s law of induction. A…
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Q: Which one of the following devices makes use of this principle, “current is induced in a coil when…
A: According to the Faraday's law of electromagnetic induction, when the magnetic flux linked with the…
Q: 15. If the direction of the current in a conductor is downward, what is the direction of the…
A: We need to examine the direction of magnetic field due to the conductor at a specified position.
Q: NOT and application of electromagnetic induction
A: Out of all option , all devices make use of electric and magnetic field but velocity selector does…
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Q: The torque on a solenoid in a magnetic field is not a function of its ____. A. loop area B. number…
A: torque = force x radius force in magnetic field = i*l*B i = current l…
Q: 2. If the current in the secondary is equal to the current in the primary, the transformer is a step…
A: The primary current is equal to the product of the secondary voltage and secondary current divided…
Q: 9. What is the value of the peak voltage for 120 V AC power? What is the peak power consumption rate…
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Q: Calculate the size (in T) of the magnetic field 11 m below a high voltage power line. The line…
A: Radius ( r ) = 11 m Voltage ( V ) = 200000 V Power ( P ) = 550 MW
Q: Q8) Draw the high frequency model of JFET
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Q: Imagine that you go to leave a room with an overhead light. The light is on. You move the wall…
A: Let a light is working in a room. Once a person is about to leave the room, he / she tries to…
Q: A large water main is 2.50 m in diameter and the average water velocity is 4.90 m/s. Find the Hall…
A: Average water velocity (v) = 4.90 msDiameter (d) = 2.50 m Magnetic field (B) = 4.90×10-5 T
Q: 129. The time period of an alternating quantity is 0.02 second. Its frequency will be A.25 Hz B.50…
A: Concept: The number of waves that pass a certain spot in a second is known as frequency. Hertz is…
Q: What instrument can detect the distance from a damaged wire?
A: cable fault meter PCE-186
Q: The daigram shows a coil connected to a voltage source. When the switch is closed, current flows…
A: Given that a coil is connected to a voltage source. When the switch is closed, current flows through…
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Q: HOMEWORK PROBLEMS FOR CHAPTER 2, 1. The value of a DC voltage or current varies over a period of…
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- Ohm's law if applied to two coils in series treats the equivalent inductance the same way as a. none of these on the list b. capacitors c. resistors d. no answer text provided35 Which law states that rate of change of magnetic flux is equal to induced electro motive force * Amperes law O Lenz law Fleming rule Faradays law of electromagnetic inductionA transformer has a primary coil with 100 turns and secondary coil with 250 turns. The input voltage is 150V and runs at 1500 Watts. Power in the secondary is calculted to be? choose one correct answer with the correct units of measure. A. 10 V B. 1500 V C. 10 Watts D. 1500 Watts
- Inductance, the same way as capacitance and resistance in an AC domain are properties of a. none of the above b. geometry c. frequencyPhysics Question 17 Single-frequency repeaters increase the range of: а. Event-reporting sensors b. Remote sensors C. Direct sensors d. Base stationsIn this lab, you learned that if a coil is connected to a DC source, the moment we turn on the switch the current going through the coil will be____. a. non-zero b. zero c. can be either or