2) In the high-voltage circuit of the X-ray generator, a transformer is used to supply a 60000 V to a machine while taking the power from a 180 V wall plug. If the x ray machine operates at 150000 W of power, calculate, (i) Current in the primary coil in amperes : (ii) Ratio of the number of secondary to primary turns : (iii) What type of transformer is used here?

Q: A 76 loops of wire has an area of 65cm x 60cm. Its magnetic field increases from -5T to 2T in 0.35s…

A:

Q: 34. ★★ A circular loop of radius R = 10.0 cm is coaxial ** with a solenoid (r= 0.0500 m, €= 1.00 m,…

A: Given data: A circular loop radius R=10 cm The solenoid radius r=0.05 m The solenoid length l=1.00 m…

Q: If the change in magnetic field is 0.3T in 0.2s as shadow walks through the coils, does the trap…

A: The current induced in the coil can found by Ohm’s law as, Here, ε, i, and R represent the induced…

Q: How do you increase the magnetic field strength, and how do you induce voltage without a battery?…

A: In this question we have to answer how to increase the magnetic field strength, and how to induce…

Q: 7. (II) The force on a wire is a maximum of 8.50 × 10-² N when placed between the pole faces of a…

A: The force on a wire is a maximum of 8.50 x 10-² N when placed between the pole faces of a magnet.…

Q: 29) A flat coil is in a uniform magnetic field. The magnetic flux through the coil is greatest when…

A:

Q: 19 - A conducting loop consisting of N coils is rotated about an axis parallel to the plane of the…

A: Induced EMF is given by: EMF = -N*d(phi)/dt phi = Magnetic flux through the coil placed in the…

Q: 87. A sort of "projectile launcher" is shown in Fig. 20–71. A large current moves in a closed loop…

A: Given: The length of the bar is 22 cm. The mass of the bar is 1.5 g. The magnetic field is 1.7 T.…

Q: Magnetic dip' results from the tendency of a magnet to align itself with lines of force. The range…

A: At equator, the magnetic dipole will allign along the horizontal.

Q: The number of turns of a coil with a section of 6cm^2 cm is 50. When the coil is placed in a 0.2T…

A: The torque on a current carrying loop in a magnetic field is

Q: (II) When a car drives through the Earth’s magnetic field,an emf is induced in its vertical…

A: The expression for emf is, ε=Bvlcosθ

Q: A long, straight conductor passes through the center of a metal ring, perpendicular to its plane. If…

A: When the current in the conductor changes, the magnetic field produced by the conductor change. Thus…

Q: indicated that a magnetic field of magnitude 1.30 x 10-3 T, oscillating at 60 Hz, might stimulate…

A: Given:- The magnetic field of the magnitude B = 1.30 x 10-3 T  The frequency f= 60 Hz  The diameter…

Q: tin Progress coil with 186 turns, a radius of 5.73 x 10-2 m, and a resistance of 0.459 0 is exposed…

A:

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: In the Helmholtz coils, the current flowing through the two coils was in the same direction. If the…

A:

Q: How many turns should a coil with a diameter of 50mm needs to generate 24v of electricity when…

A: According to Faraday's law of electromagnetic induction, the emf induced is given by: e = ndϕdt=n…

Q: A closely wound 0.20 m × 0.20 m square coil of 100 turns is exposed to an external magnetic field of…

A:

Q: Is an emf induced in the coil shown when it is stretched? If so, state why and give the direction of…

A: Given:  A coil

Q: Calculate the magnitude of the induced emf when the magnet in figure (a) is thrust into the coil,…

A: Given:  radius,  r = 6 cm = 0.06 m  B1 = 0.05 T  B2 = 0.25 T  time, t = 0.1 s

Q: The conducting bar illustrated as shown moves on two frictionless, parallel rails in the presence of…

A: Given data *The bar has mass is m *The bar has a length is l *The bar is given with an initial…

Q: 13 - chapter31-question2 The area of an elastic circular loop decreases at a constant rate, dA/dt…

A:

Q: Can you set a resting electron into motion with a magneticfield? With an electric field? Explain.

A: electron at rest

Q: etangular 50-winding current coil with dimensions of Sem and 10cm falls from a state of B-0 to a…

A: Induced emf = rate of change of magnetic flux

Q: Back Emf• Explain what back emf is and how it is induced.

A: Back emf is also known as counter electromotive force. It is the electromotive force or voltage that…

Q: Medical devices implanted inside the body are often powered using transcutaneous energy transfer…

A:

Q: 25-16. A transformer draws power P and delivers a current I, in its secondary coil. (a) What is the…

A: Power = potential×current P=V×I

Q: A electric motor has a current running through it and it is rotating counterclockwise in an external…

A: We have an electric motor with a current running through it and it is rotating counterclockwise in…

Q: Respiration monitor belts are sometimes used in hospitals to monitor the breathing of patients. One…

A: Number of turns = N = 200 Magnetic field = Angle between the normal to the plane and magnetic field…

Q: . The vertical magnetic field, initially zero, is slowly increased. When the field strength reaches…

A: In this problem  Frictional force = magnetic  force μmg= BIL Given that B=B0

Q: Discuss the possibility that a Hall voltage would be generated on the moving heart of a patient…

A: Hall effect: When the magnetic field is applied across the current-carrying conductors or devices,…

Q: (III) A simple generator has a square armature 6.0 cm on aside. The armature has 85 turns of…

A: Given: Square armature 6.0 cm on a The armature has 85 turns of 0.59-mm-diameter Rotates in a 0.65-T…

Q: The 1300-turn coil in a dc motor has an area per turn of 2.4 × 10-2 m2. The design for the motor…

A: τmax=NIAB       I=τmaxNAB

Q: A 2 meter-long bar is being moved to the right at a constant speed. The bar is sliding on a frame…

A:

Q: 2. If the current in a solenoid is reversed in direction while keeping the same magnitude, the…

A: 2. Direction of current in the solenoid

Q: - When a coil with a cross section of 10 cm^2 and a number of turns of 100 is placed in a magnetic…

A:

Q: Medical devices implanted inside the body are oftenpowered using transcutaneous energy transfer…

A: Formula for maximum magnetic field,

Q: A galvanometer has a rectangular coil side of 10mm*30mm pivoted about the center of shorter side. It…

A:

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.