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A circular wire loop of radius R, mass m carrying current I lies on a rough surface (as shown in Fig. 1.86). There is a horizontal magnetic field B. How large can the current I be before one edge of the loop will lift off the surface?
13
Oct
A circular wire loop of radius R, mass m carrying current I lies on a rough surface (as shown in Fig. 1.86). There is a horizontal magnetic field B. How large can the current I be before one edge of the loop will lift off the surface? A circular wire loop of radius R mass [...]
Figure. shows one quarter of a simple circular loop of wire that carries a current of 10 A. Its radius is a = 5 cm. A uniform magnetic field, B = 400 G, is directed in the +x direction. Find the torque on the entire loop and the direction in which it will rotate.
13
Oct
Figure. shows one quarter of a simple circular loop of wire that carries a current of 10 A. Its radius is a = 5 cm. A uniform magnetic field, B = 400 G, is directed in the +x direction. Find the torque on the entire loop and the direction in which it will rotate. B [...]
The square loop in Fig. has sides of length 20 cm. It has 5 turns and carries a current of 2 A. The normal to the loop is at 37∘ to a uniform field B = 0.5jˆT. a. Find the magnetic moment of the loop. b. Find the work needed to rotate the loop from its position of minimum energy to the given orientation.
13
Oct
The square loop in Fig. has sides of length 20 cm. It has 5 turns and carries a current of 2 A. The normal to the loop is at 37∘ to a uniform field B = 0.5jˆT. a. Find the magnetic moment of the loop. b. Find the work needed to rotate the loop from [...]
The rectangular coil having 100 turns is placed in a uniform magnetic field of ( 0.05 / root 2 ) j tesla as shown in figure. Find the torque acting on the loop.
13
Oct
The rectangular coil having 100 turns is placed in a uniform magnetic field of ( 0.05 / root 2 ) j tesla as shown in figure. Find the torque acting on the loop. The rectangular coil having 100 turns is placed in a uniform magnetic field of ( 0.05 / root 2 ) j tesla [...]
Find the magnetic moment of the current carrying loop OABCO as shown in figure. Given that i = 4A, OA = 20 cm , and AB = 10 cm
13
Oct
Find the magnetic moment of the current carrying loop OABCO as shown in figure. Given that i = 4A, OA = 20 cm , and AB = 10 cm and AB = 10 cm Find the magnetic moment of the current carrying loop OABCO as shown in figure. Given that i = 4A OA = [...]
A copper wire with density ρ with cross-sectional area S bent to make three sides of a squae frame which can turn about a horizontal axis OO’ as shown in figure. The wire is located in uniform vertical magnetic field. Find the magnetic induction if on passing a current I through the wire the frame deflects by an angle θ in its equilibrium position.
13
Oct
A copper wire with density ρ with cross-sectional area S bent to make three sides of a squae frame which can turn about a horizontal axis OO’ as shown in figure. The wire is located in uniform vertical magnetic field. Find the magnetic induction if on passing a current I through the wire the frame [...]
Figure shows a horizontal wire MN of length I and mass mis placed in a magnetic field B. The ends of wire are bent and dipped in two bowls containing Hg which are connected to an external circuit as shown. If key is pressed for a short time δt.due to which a charge q suddenly flows in the circuit. Find the maximum height above initial level the wire MN, it will jump.
13
Oct
Figure shows a horizontal wire MN of length I and mass mis placed in a magnetic field B. The ends of wire are bent and dipped in two bowls containing Hg which are connected to an external circuit as shown. If key is pressed for a short time δt.due to which a charge q suddenly [...]
A metal rod of mass 10 gm and length 25 cm is suspended on two springs as shown in Fig. 1.131. The springs are extended by 4 cm. When a 20 A current passes through the rod, it rises by 1 cm. Determine the magnetic field assuming acceleration due to gravity to be 10 m/s.
13
Oct
A metal rod of mass 10 gm and length 25 cm is suspended on two springs as shown in Fig. 1.131. The springs are extended by 4 cm. When a 20 A current passes through the rod, it rises by 1 cm. Determine the magnetic field assuming acceleration due to gravity to be 10 m/s. [...]
A circular coil with area A and N turns is free to rotate about a diameter that coincides with the x-axis. Current I is circulating in the coil. There is a uniform magnetic field B in the the positive y direction. Calculate the magnitude and direction of the torque τ and the value of the potential energy U, when the coil is oriented as shown in parts (a) through (d) of Fig.
13
Oct
A circular coil with area A and N turns is free to rotate about a diameter that coincides with the x-axis. Current I is circulating in the coil. There is a uniform magnetic field B in the the positive y direction. Calculate the magnitude and direction of the torque τ and the value of the [...]
A square loop OABCO of side l carries I. It is placed as shown in figure. Find the magnetic moment of the loop.
13
Oct
A square loop OABCO of side l carries I. It is placed as shown in figure. Find the magnetic moment of the loop. A square loop OABCO of side l carries I. It is placed as shown in figure. Find the magnetic moment of the loop. October 13, 2020 Category: Uncategorised (JEE Advanced Physics by [...]