A metal bar with length LL, mass mm, and resistance RR is placed on frictionless metal rails that are inclined at an angle & above the horizontal. The rails have negligible resistance. A uniform magnetic field of magnitude BB is directed downward in the figure (Figure 1). The bar is released from rest and slides down the rails. Is the direction of the current induced in the bar from a to bor from b to a?

Q: What is the angle of dip at magnetic poles and magnetic equator?

A: The dip ranges from South Magnetic Pole is (-90) degrees and in the North Magnetic Pole (+ 90)…

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: Difference between OPEN LOOP and CLOSE LOOP?

A:

Q: Write about 10 applications of both Direct Current (DC) and Alternating Current (AC)

A: DC is most commonly produced by sources such as solar cells, batteries, and thermocouples. DC power…

Q: 1. O (a) The bulb (shown as R in the figure above) is on when the switch is open, because A. The…

A: A) option B is correct.B) option D is correct. Detailed explanation is given below.Any further…

Q: te magnetic domains to a material being magnetized. What are the domains and what happens to them…

A: All substances show some kind of magnetic behavior. After all, they are made up of charged particles…

Q: True or False: The left hand rule can be used to determine the direction of rotation of an electric…

A: When a current-carrying conductor is placed under a magnetic field(B) , a force(F)  or thrust acts…

Q: When transferring information from a tape recorder to a computer, a cassette drive is utilised.…

A: A cassette drive, also known as a tape drive, is a device specifically designed to read and write…

Q: Check all that apply. The strength of a solenoid's magnetic field increases with increasing.. Number…

A:

Q: How can you distinguish the primary winding from the secondary winding in a step-up transformer?

A:

Q: Two coils as shown in the Figure below, then at t=0 and switch S is closed, which of the following…

A: please see the next step for solution

Q: why isn't it e

A: When a ball moves, it picks up momentum, but when we grab it, that momentum is transferred to our…

Q: An electric motor uses electric current to move. O True O False

A:

Q: A toroid has N turns wound around it. The current through the windings is / as shown in the figure.…

A: Toroid is closed loop of solenoid which acts as magnet whenever current passes through it.

Q: A group of neighboring atoms whose poles aligned is called are electromagnet permenent magnet…

A: Introduction: Material can be categorized into different types depending on the different properties…

Q: Define toroid.

A:

Q: In the figure below, a solenoid is moved toward a bar magnet. The current induced through the…

A:

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

A:

Q: Q4) In free space, rectangular loop with current of 12A as shown in figure, if H = 10 ax A/m, find…

A: The force on current carrying wire is given by, F = I L ×H on the magnetic field and the length of…

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: A negatively-charged particle is shot near a wire carrying a current out of the page. Which…

A:

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

A: The answers are below

Q: What is the principal difference between a step-up transformer and a step-down transformer?

A: A transformer is a device which converts high to low and low to high voltage.

Q: IN attract repel 1.f O A. Attract о в. Repel

A: Solution: Given: Given a picture in which two magnets are shown. One is horseshoe magnet and other…

Q: define and give a breif description of Faraday's law of induction and how it is related to Lenz's…

A: The expression for the Faraday’s law,

Q: Which direction will the DC motor shown below spin? * stator N armature S commutator. brush

A: Direction of force on armature(coil) can be find by using  Fleming's left hand rule  Thumb shows…

Q: What is the relationship between magnetic field and magnetic energy density

A: The energy density in a magnetic field is given by                                          uB =…

Q: X)I

A: Option c

Q: What is the direction of the magnetic field at the position of the dot? A) Down. B) Out of the…

A: Direction of velocity v= negative z direction Position to find magnetic field in in = positive x…

Q: Are you convinced that motors and generators are really the same? Explain how they are the same yet…

A: The design/construction of motor and generator are quite similar. Both have coils(windings)…

Q: How are the emf in the primary and secondary coils of a transformer related with the number of turn…

A: Emf in the coil is directly proportional to the number of turns.

Q: (G) that I, exerts on the p (H) that I, exerts on I2 (1) that I, exerts on l2 at C 12 12

A:

Q: A current loop is shown below. At point P, in which direction will a compass point?

A: The direction of field due to current carrying wire can be found using the righ hand curled finger…

Q: What is mutual induction and self induction. What is the unit of inductance..... With daigrms and…

A: Introduction: Inductance is the tendency of an electrical conductor to oppose a change in the…