# A conducting rod of length l moves on two horizontal frictionless rails

• A 2.0-kg rod that has a length of 1.0 m and a resistance of 4.0 slides with constant speed down a pair of frictionless vertical conducting rails that are joined at the bottom. Other than the rod, the rest of the circuit is resistanceless. A uniform magnetic field of magnitude 3.0 T is perpendicular to the plane formed by the rod
35.A rod AB of mass M and length L is lying on a horizontal frictionless surface. A particle of mass m travelling along the surface hits the end ‘A’ of the rod with a velocity v 0 in a direction perpen­dicular to AB. The collision is elastic. After the ‘collision the particle comes to rest. (a)Find the ratio m/M .

A conducting rod of length l moves with velocity v parallel to a long wire carrying a steady current I. The axis of the rod is maintained perpendicular to the wire with the near end a distance r away. Show that the magnitude of the emf induced in the rod is 0 ln 1 2 I l v r µ ε π = + (9.1) Solution:

7. (25 points) A perfectly conducting rod of lengthlmoves on two horizontal, frictionless,resistanceless rails as shown in Fig. 5. Connecting the rails are a capacitorCand resistorR.At timet= 0, the capacitor is uncharged and the bar is moving at a constant speedvthrough...
• rod of length L and of negligible mass, as. shown in Figure. For an axis perpendicular to. 10. A long, uniform rod of length L and mass M is pivoted about a horizontal, frictionless pin passing through one end. The rod is released from rest in a vertical position, as shown Figure.
• Two rough planes inclined at 300 and 600 to horizontal are placed back to back as shown in Fig. Q. No. 3. The blocks are connected by a string running parallel to the planes and passing over a frictionless pulley. If between the blocks and the planes is 1/3, find the resulting acceleration and tensions in the string. (6 Marks)
• 4  A conducting rod of length l moves on two (frictionless) horizontal rails, as shown to the right. A constant force of magnitude moves the bar at a constant speed of through a magnetic field directed into the page. The resistor has a value ( a) What is the current through the resistor R? (b)...

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The rods and cones in our eyes adjust to the disappearance of the lilac dots after a few seconds and become tired. In the absence of the lilac dot, our eyes engage cones which process colors at the opposite end of the spectrum; in this case, green.

1. A rod of mass m and radius r rests on two parallel rails that are a distance d apart and of length L. The rod carries a current of I in the direction shown and rolls along the rails without slipping. A uniform magnetic field g is directed perpendicular to the rod and the rails. If it starts

The conducting rod shown in the figure has length L and is being pulled along horizontal, frictionless, conducting rails at a constant velocity. The rails are connected at one end with a metal strip. A uniform magnetic field, directed out of the page, fills the region in which the rod moves.

The object moving up an inclined plane needs to move the entire length of the slope of the plane to move the distance of the height. For example, if you have a ramp with a slope length 20 meters that rises 5 meters high, then your trade-off is moving the 20 meters distance versus lifting straight up 5 meters, and your mechanical advantage is 4.

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There are two commonly used units of measurement for angles. The more familiar unit of The reason that this definition works is that the length of the subtended arc is proportional to the radius of the circle. If the gauge is 5 feet, find the difference in length of the two rails to the nearest half-inch.

Let the copper rod be oriented along y-axis and current flows along +y-axis and that it moves along The coefficient of static friction between rod and rails is #mu_s#. What are the (a) magnitude and (b) We are to find the smallest magnetic field that puts the rod of length #L# carrying current #i# on...

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Ans: 2.Two point masses of 0.3kg and 0.7kg are fixed at the ends of a rod which is of length 1.4m and of negligible mass. Ans: 4.A smooth sphere A is moving on a frictionless horizontal plane with angular speed co and centre of mass velocity v. It collides elastically and head on with an identical...

A straight horizontal conducting rod of length 0.45 m and mass 60 g is suspended by two vertical wires at its ends. A horizontal magnetic field of 0.26 T normal to the length of the conductor should be set up in order to get zero tension in the wire.

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Physics Physics for Scientists and Engineers, Technology Update (No access codes included) A conducting rod of length ℓ moves on two horizontal, frictionless rails as shown in Figure P31.26. If a constant force of 1.00 N moves the bar at 2.00 m/s through a magnetic field B that is directed into the page (a) what is the current through the 8.00-Ω resistor R ?

A 2.0-kg rod that has a length of 1.0 m and a resistance of 4.0 slides with constant speed down a pair of frictionless vertical conducting rails that are joined at the bottom. Other than the rod, the rest of the circuit is resistanceless. A uniform magnetic field of magnitude 3.0 T is perpendicular to the plane formed by the rod

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8. A conducting rod with mass m and length L moves on the top of two horizontal rails that are connected to a battery. The battery maintains a constant current in the circuit. Assuming friction, air resistance, and electrical resistance are negligible answer the following: a. Find the direction and magnitude of the net force on the rod. b.

a pair of frictionless and perfectly conducting rails located a distance 1 2 Lon both sides (in the x-direction) along the positive y-axis. The rails are connected at y= 0 by a perfect conductor, and a constant magnetic eld B 0 ^e z passes through the area between the rails for all y>0. [5pt] a. Compute the electromotive force in the conducting ...

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29. In Fig. 30-52, a metal rod is forced to move with constant velocity v along two parallel metal rails, connected with a strip of metal at one end. A magnetic field of magnitude B = 0.350 T points out of the page. (a) If the rails are separated by L = 25.0 cm and the speed of the rod is 55.0 cm/s, what emf is generated? (b) If the rod has a ...

5. A conducting rod with a length of 0.45 m makes a contact with two conducting and parallel rails. The rails are connected to a 2.5 Ω resistor; ignore the resistance of the rod and rails. A constant force F moves the rod at a constant speed 4.2 m/s to the right with no friction between the rod and rails. The apparatus is placed in a uniform magnetic field 1.8 T that is perpendicular to the rails and the rod.

A conducting rod of length l is hinged at point O. It is free to rotate in a vertical plane. There exists a uniform magnetic field B in horizontal direction. The rod is released from the position shown in figure. Potential difference between the two ends of the rod is proportional to
A conducting rod of length l moves on two (frictionless) horizontal rails, as shown to the right. A constant force of magnitude |~F app| = 1.0N moves the bar at a uniform speed of |~v|=2.0m/s through a magnetic ﬁeld B~ directed into the page. The resistor has a value R=8.0Ω. (a) What is the current through the resistor R?
rod with a mass of 6 kg and a length of 1.0 m is pivoted on the right end. It is held in equilibrium by an upward force of 40 N. 6. ___ C.___ How far from the left end of the rod should the force be placed to maintain equilibrium? A) 10 cm D) 40 cm B) 20 cm E) 50 cm C) 25 cm Ans. Since the rod is uniform, we can assume