A 77.0 kg person is being pulled away from a burning building as shown in the figure below. 15% T₁ J.10⁰ Calculate the tension (in N) in the first rope, T₁, if the person is momentarily motionless. N Calculate the tension (in N) in the second rope, T₂, if the person is momentarily motionless. N Include a free-body diagram in your solution. (Submit a file with a maximum size of 1 MB.) Choose File no file selected

Q: . (II) A third wire is placed in the plane of the two wiresshown in Fig. 20–57 parallel and just to…

A: The given values are, I=25.0 Ar1=2.8 mm=2.8×10-3 mr2=2.8 mm+2.8 mm=5.6 mm=5.6×10-3 m

Q: List down 5 famous people who has a major contributions to Electromagnetism.

A: Following are the five famous people with great contribution in electromagnetism :-   1. André-Marie…

Q: Name the material used for making the armature of an electric bell. Give a reason for your answer.

A: The material used for making the armature of an electric bell is soft iron which can induce…

Q: RELATE MAGNETIC FIELD TO TORQUE

A: Magnetic field and torque.

Q: work done by magnetic force

A:

Q: the magnetic force on a charged particle depends on

A:

Q: When a permanent magnet is broken in half what happens

A:

Q: how does  transformers work based on the principles of electromagnetic induction

A:

Q: Discuss briefly four practical application of eddy currents in our everyday life

A: The eddy currents is a method based on the principle of generating circular electrical…

Q: hysterisis? f

A:

Q: Why does a brushed DC motor have a commuter and what is its function?

A:

Q: (II) One form of mass spectrometer accelerates ions by avoltage V before they enter a magnetic field…

A: A mass spectrometer is a device used to measure the charge-to-mass ratio qm of charged atoms and…

Q: please show to me how to know the direction og magnetic flusk is into the page or out of page

A: The direction of magnetic field is derived by Right hand rule,thumb in current direction and curly…

Q: where do you place the coils in a refrigerator

A: Condenser coils are used to remove the excessive heat from refrigerator so that it can remain cool .

Q: if you could put many magnets together, do you think the magnetic force will be stronger or weaker?

A: YES  , magnetic force will be stronger by putting many magnets together.

Q: How a step down transformer works?

A: A transformer is a device which can converts the high voltages into the low voltages.

Q: O strongest far from a magnet O constant everywhere around a magnet strongest close to the poles of…

A: Given:- The magnetic field strength is  Find:- correct option  strongest far from a magnet constant…

Q: The ends of a metal bar rest on two horizontal north-south raiis as shown above The bar mav shde…

A:

Q: A step-down transformer converts 120 V to 5 V in a phone charger. If the primary coil has 600 turns,…

A: The voltage and number of turns relationship for a transformer is: NsNp=VsVp Here, Ns and Np…

Q: - An electric motor rotating at an angular speed of 600 rpm starts to slow down when the current is…

A:

Q: What is the dependence of magnetic force on the angle of orientation of the coil?

A: Answer:

Q: What is another example of how a turbine and generator set up is used to generate electricity and…

A: The example of turbine and generator set up is seen in water plants or near the dam in which water…

Q: Explain the effect of increasing the armature voltage on the be shunt wound machine with the braking…

A: Armature voltage is the voltage developed at the terminals of the armature winding of an AC or a DC…

Q: In your own words explain how an electromagnet works.

A:

Q: How does a motor compare with a generator? Briefly describe what they do and how they are different.

A: In motor current is not generated,here current is flown through a current carrying loop by external…

Q: To induce a current in a wire coil, a magnet must be spinning at rest moving O strong

A:

Q: My new cell phone requires 9 volts to operate correctlyA transformer nicely allows the device to be…

A:

Q: Give an example of applications of Magnetic Properties in machine/technology and explain how its…

A: Magnetic  property: when a magnetic field is exerted on a particular material,the property shown by…

Q: 12 - The instantaneous power can be written as? O A) P-F/V OB) P- F.r OC) P= F.A OD) P=FV O E) P-…

A: Fomula of instantaneous power

Q: Why does a transformer require ac?

A: The working principle of a transformer is mutual induction.

Q: The transformer works on the principle of We construct and understand the working of the two types…

A: The answers are below

Q: . Two protons move parallel to the x-axis in opposite directions at the same speed v (small compared…

A:

Q: Q3) Calculate the stretch (elongation) in spring AC. -4 m kAC- 20 N/m www 3m kan = 30 N /m ww m- 100…

A: The spring constants for the springs are given  To find = Stretch in spring AC

Q: Moment of Inertia of loop

A:

Q: Why will a transformer not work if you are using dc?

A:

Q: What is synchronous speed in (rpm and rps)for a three-phase 50-Hz induction motor if it has 8…

A:

Q: Auto transformer windings are wound on two separate limbs of the iron core Either True or False?

A: We know that, An autotransformer has only one winding known as the main building.  In another…

Q: What is the difference between a single turn coil and a multi turn coil?

A: Single-turn coil:A single-turn coil, as the name suggests, consists of only one loop of wire. It…

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”