Electromagnet: How does a compass behave in a electromagnet with a DC source? How about AC source?

Q: The armature of a d.c. The machine has a resistance of 0.25 ohm and is connected to a 300V supply.…

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Q: C.UP.032. [4269537] An engineer connects a resistor in parallel with an electric motor (a schematic…

A: Apply the Kirchhoff’s voltage law in the loop to determine the value of current.

Q: 6. A 230 V shunt motor has a nominal arma- ture current of 60 A. If the armature resist- ance is…

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Q: of conservation o ve will solve for th

A: Given as,

Q: a. Can we use both a multiplexer and demultiplexer in the same circuit? If yes, how and why. Then…

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Q: 1. Christmas tree lights need a transformer to convert the 240 V AC to 12 V AC. If there are 50…

A: Solution:-Given thatPrimary voltage (V1)=240 VSecondary voltage (V2)=12 VNumber of turns on…

Q: Which of the following devices converts electric energy into mechanical energy?

A: The given statement is  Device which converts electric energy into mechanical energy?

Q: QUESTION 14 We now know that spinning a magnet that is surrounded by wires, or spinning a wire that…

A: The given situation is a principle of a dynamo.

Q: A 10 N force is acting on a body in the upward direction while a 10 N force is acting on the same…

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Q: 5. In an electric circuit containing inductors, the largest induced voltage usually occurs is opened…

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Q: A conducting ring is held a certain distance above a loop carrying a decreasing current as…

A: If the current in the bottom coil is decreasing, there will be a change in the magnetic field in the…

Q: Which of the following rule is used to determine the direction of rotation of the coil of the D.C…

A: The direction of rotation of the coil in dc motor

Q: Identify the laws of electromagnetic induction.

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Q: Select all the statements that correctly complete the sentence. When the dielectric inside a…

A: The objective of the question is to understand the behavior of a dielectric when it is exposed to an…

Q: Explain how induction occurs.

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Q: aws where we solved for th pt: principle of conserv

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Q: What circuit element(s) will oppose the change in current in the circuit? a. inductor only b.…

A: According to Lenz's law the polarity of the voltage accross the inductor in such a direction so that…

Q: S 13 R2 R L An inductor with indu ctance L = 0.4 H and negligible resistance is connected to a…

A: R1 = 20 R2 = 30 L = 0.4 H V = 180 V To find = Value of t for which  has half of the final value…

Q: redraw the following circuit in this way?

A: Given:

Q: 400 mm, -1100 mm- A B. 960 mm C

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Q: Since inductors can be used as energy storage elements, how much inductance is needed to power up a…

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Q: A 6 KVA, 100 V / 500 V, 1-ph transformer has a secondary terminal voltage of 487.5 volts when…

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Q: What law considered as a working principle of the most of the electrical motors, generators,…

A: electrical motors and generators are the devices which are used to mainly convert electrical energy…

Q: The magnetic field energy in an inductor changes from maximum value to minimum value in 5m sec when…

A: Given: The magnetic field energy in an inductor when connected to an a.c. source, It changes from…

Q: V04

A: Given that-Voltage of the primary coil: VP=39.61 VoltCurrent in the primary coil: IP= 9.49 AVoltage…

Q: A particular transformer has a greater number of turns on the secondary winding than on the primary…

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Q: If you want to use a step-up transformer to convert 5V DC to 10V DC, what turn ratio would you need?…

A: Transformer work on  the principal of mutual induction between two coil (primary and secondary).…

Q: . In order to prevent external magnetic fields from affecting the inductance (solenoid coil) on the…

A: discuss about  hard and soft magnetic material and what is best material for magnetic shield…

Q: Activity 1- AC and DC Current Direction: Look around your house, name at least 6 devices that uses…

A: AC Current : An electric current which periodically reverses direction and changes its magnitude…

Q: Which particular part of a the motor you can use to identify a "AC motor"? O a. Magnetic poles O b.…

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Q: 3. You have seen how Kirchhoff's laws were used in your lectures to obtain a 2nd order differential…

A: Given L=5H C=2F R=3ohm

Q: On the freeway, there are also induction loops to detect cars’ speed. Concidering when you move a…

A: In the coil, the voltage is induced due to the relative motion between the coil and the magnet.

Q: 211. What are the factors that affect the amount of induced electromagnetic force? How do these…

A: Induced emf

Q: 67. ⚫CE Transformer 1 has a primary current Ip and a secondary current I. Transformer 2 has twice as…

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Q: Based on my experience on a transformer principle, I may say that an AC transformer can "breathe in"…

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Q: How energy is stored in capacitors and inductors. Are the equations linear or nonlinear?  Give…

A: Energy storage in capacitors and inductors is a fundamental concept in the field of electrical…

Q: 6. For 2 inductors La and Le with values 150µH and 200µH.Calculate (3M) 1. Total inductance when LA…

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Q: In Faraday’s apparatus, No current flows through the galvanometer when the switch remains closed or…

A: According to question: The galvanometer is used to detect any current induced in a separate coil on…