A straight wire of mass 10.0 g and length 5.0 cm is suspended from two identical springs that, in turn, form a closed circuit (Fig. P19.74). The springs stretch a distance of 0.50 cm under the weight of the wire. The circuit has a total resistance of 12 V. When a magnetic field directed out of the page (indicated by the dots in the figure) is turned on, the springs are observed to stretch an additional 0.30 cm. What is the strength of the magnetic field? (The upper portion of the circuit is fixed.)

Q: moving at a velocity of 5.80 m/s toward a parallel (much longer) wire which carries a current of…

A: concept and formula here  we use the formula of induced emf and magnetic field due to long straight…

Q: A segment of wire 7.8 cm long is moving at a velocity of 5.99 m/s toward a parallel (much longer)…

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Q: Suppose that the light bulb in Figure 22.4b is a 60.0-W bulb with a resistance of 287 Ω. The…

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Q: A square wire with 2 m sides is perpendicular to a uniform magnetic field, with half the area of the…

A: Given data, Length L=2 m EMF of battery ε=20 V Magnetic flux B=1.041-0.84t

Q: A square wire loop with 2.4 m sides is perpendicular to a uniform magnetic field, with half the area…

A: Using the electromagnetic induction,

Q: You are designing a generator to be run with a wind turbine that rotates at 6.67 rad/s. You are…

A: Faraday performed experiments to check whether current is produced in a closed wire when placed in a…

Q: . A segment of wire 5.3 cm long is moving at a velocity of 6.68 m/s toward a parallel (much longer)…

A: Given Data:The length of the wire is The velocity of the wire segment is The current in the wire is…

Q: A technician wearing a brass bracelet enclosing area 0.00500 m places her hand in a solenoid whose…

A: A technician wearing a brass bracelet enclosing area 0.00500 m2 places her hand in a solenoid whose…

Q: A rectangular coil with dimensions 0.18 m by 0.27 m has 550 turns of wire. It is rotated about its…

A: Rectangular coil area "A"= 0.18×0.27 m² No. Of turns "N"= 550  magnetic field "B"= 0.56 T  maximum…

Q: A conducting rod slides down between two frictionless vertical copper tracks at a constant speed of…

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Q: I got 0.1981686061 V

A: 0.40 VExplanation:

Q: A current runs in a long solenoid of a radius 3 cm and 437 turns per meter. The current in the…

A: Radiusof long solenoid  (r) = 3 cm = 0.03 m Number of turns per meter (n) = 437 Rate of increase of…

Q: While this field is changing, what does the ammeter read? Express your answer in milliamperes. I =…

A: Given  area (A)=0.3 x0.6=0.18 m2 Resistance(R)=15 ohms rate of change of magnetic field dBdt=-0.34…

Q: A long solenoid of radius r = 2.00 cm is wound with3.50 x 103 turns/m and carries a current that…

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Q: A 12 cm long conducting bar is free to slide horizontally on the rails of a conducting frame, as…

A: Length of the bar L = 12 cm = 0.12 m Magnetic field B = 2.0 T Resistance R = 45 Ω Power dissipated…

Q: Below is a rectangle that is being pulled into a magnetic field as shown.  The rectangle has a…

A: GIVEN:- h=0.680 m, v=155m/s ,R=11.50 ohms, B=48mT Introduction:- We know that In motional…

Q: A segment of wire 5.7 cm long is moving at a velocity of 2.89 m/s toward a parallel (much longer)…

A:

Q: A v-shaped metal rod completes a circuit while sliding without friction on a pair of rails in a…

A: The force (in Newtons ) pulling the rail downwards. given, Velocityv=7.28 m·s-1magnetic fieldB=6.40…

Q: A stralght wire or mass 10.8g and Tength 5.0 cm is suspended from two identical springs that, In…

A:

Q: A circular coil enclosing an area of 120 cm² is made of 190 turns of copper wire (shown in the…

A: The area of the circular coil is Resistance of the coil is number of  turns in the coil, The…

Q: (a) Calculate the applied force required to move the bar to the right at a constant speed of 1.90…

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Q: A 100-turn square wire coil of area 0.040 m2 rotates about a vertical axis at 1 500 rev/min, as…

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Q: A 50 cm long metal rod moves along the two rails in a plane of the circuit shown and is placed…

A:

Q: A copper wire is 10.00 m long and has a cross-sectional area of 2.00 ✕ 10-4 m2. This wire forms a…

A:

Q: A metal rod is forced to move with constant velocity = 75.0 cm/s along two parallel metal rails,…

A: Given, v = 75 cm/s B = 0.35 T L = 35 cm

Q: A technician wearing a brass bracelet enclosing area 0.00500 m2 places her hand in a solenoid whose…

A:

Q: A segment of wire 7.9 cm long is moving at a velocity of 5.85 m/s toward a parallel (much longer)…

A:

Q: A segment of wire 7.9 cm long is moving at a velocity of 4.75 m/s toward a parallel (much longer)…

A:

Q: A conducting coil of 2100 turns is connected to a galvanometer, and the total resistance of the…

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Q: A circular copper loop is placed perpendicular to a uniform magnetic field of 0.75 T. Due to…

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Q: Refer To: Ref 22-2 Which one of the following statements concerning this situation is true? Since…

A: Have a look dear

Q: In the figure below, a metal rod is forced to move with constant velocity  along two parallel metal…

A: Given : Magnetic field (B) = 0.370 T  Length (L) = 28 cm = 0.28 m Speed (v) = 70 cm/s = 0.70 m/s…

Q: A circuit is made with a resistor of resistance 25 ohms and a movable bar with length 15 cm moving…

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Q: A segment of wire 7.5 cm long is moving at a velocity of 3.26 m/s toward a parallel (much longer)…

A:

Q: technician wearing a brass bracelet enclosing area 0.00500 m² places her hand in a solenoid whose…

A: Given value--- Area = 0.005 m2 . Change in magnetic field = 4 T to 1.2 T  Time period = 22 ms.…

Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

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.