Upon which one or more of the following does the magnetic energy of a coil that carries a current depend? (you may choose one or more) A. I B. the number of turns in the coil C. the resistance of the coil D. the presence of an iron core in the coil

Q: The sketches below show a circular coil and a permanent magnet; the arrows indicate both the…

A: The magnetic field can be altered by the movement of a magnet to produce electromotive force in a…

Q: A magnet is moving toward a solenoid and a potential difference is induced between the two ends of…

A: a) if the speed of magnet is increased induced emf will increase because rate of change of flux will…

Q: The magnetic field produced at centre of a current carrying circular wire depends on: O a. number of…

A: solution as

Q: 1) A circuit is placed in a uniform magnetic field that points into the page as shown. The magnetic…

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Q: Select the correct expression for the e.m.f. of  a metallic disk or radius r placed with its plane…

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Q: There is a 40 cm long solenoid  that has 600 wire loops. If Jim uses a magnetic sensor near the…

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Q: 17. A cross sectional view through the middle of an in- finitely long solenoid of radius R is shown…

A: We will first write an expression for magnetic field due to solenoid. We then use this expression to…

Q: 1. Find out the following for each case depending on the movement of the magnet towards the coil. a)…

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Q: A bar magnet enters a long solenoid which has an ammeter attached in series to both ends. Explain…

A: This question refers to electromagnetic induction, in which a changing magnetic field within a wire…

Q: Two identical coils (coil A and coil B) of wire are mounted parallel so that their axes coincide.…

A: As one begins to run current through coil A, there is an increase in magnetic field associated with…

Q: The sketches below show a circular coil and a permanent magnet; the arrows indicate both the…

A: We are going to follow these basic concept to solve this question.

Q: 20. Both conducting loops shown below are coplanar (in the y/z axes) and carry current as shown.…

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Q: Suppose that you wish to construct a simple ac generator having an output of 12 V maximum when…

A: Given: The emf (V) output of the ac generator is 12 V. It is rotated at a frequency (v) of 60 Hz.…

Q: Which of the following statements about the earth's magnetic field is NOT true? O The south pole of…

A: a) The south pole of the earth's magnetic field is actually magnetic north. This statement is true.…

Q: 9. The maximum torque experienced by a coil in a 7.80 × 10-³ T magnetic field is 0.80 N.m. The coil…

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Q: 6. Two moving rods of equal lengths (1.30 m) are moving as shown in the figure. The speed v₁ = 1.10…

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Q: If number of turns (N), area (A) and magnetic field (B) have same value for a square and circular…

A: Using formula for torque in current carrying loop in magnetic field

Q: When you push the South end of a magnet into a solenoid, it creates a negative voltage. If you push…

A:

Q: 19. A square conducting loop of side a and resistance R passes through a region of space that has…

A: Side of loop is = a Magnetic field = B Resistance = R

Q: When you move a magnet through a 1 loop coil you detect a voltage of 0.001 volts, what voltage would…

A: N1/N2=V1/V2   N1=1 V1=0.001 V N2=1000

Q: A solenoid is wound on a rod 4 cm in diameter in 50 cm long. The windings carry a current of 3.5 A…

A: Given the length of the solenoid l = 50 cm Diameter of the solenoid d= 4cm Current in the wire I =…

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.