Some magnetic flux is changed from a coil of resistance 10Ω. As a result
Sahay Sir > Question Answers > Some magnetic flux is changed from a coil of resistance 10Ω. As a result
A thin wire AC shaped as a semi-circle of diameter d rotates with a constant angular frequency (ω) in a uniform magnetic field of indcution B. The vector ω is parallel to B and the rotation axis XY passes through the end A of the wire and is perpendicular to the diameter AC (see Fig.). B is directed left to right in the plane of the paper. The value of the line intergral I = ∫E ⋅dr taken along the wire form the point A to the point C will be ωBd2/ ?. What integer should be inserted in place of question mark.
21
Oct
A thin wire AC shaped as a semi-circle of diameter d rotates with a constant angular frequency (ω) in a uniform magnetic field of indcution B. The vector ω is parallel to B and the rotation axis XY passes through the end A of the wire and is perpendicular to the diameter AC (see Fig.). [...]
A conducting rod of mass 200 gm and length 10 cm can slide without friction on two long, horizontal rails. A uniform magnetic field of magnitude 5 m T exists in the region as shown. A source S is used to maintain a constant current 2 A through the rod. If motion of the rod starts from the rest, find its speed (in cm/s) after 10 s from the start of the motion
21
Oct
A conducting rod of mass 200 gm and length 10 cm can slide without friction on two long, horizontal rails. A uniform magnetic field of magnitude 5 m T exists in the region as shown. A source S is used to maintain a constant current 2 A through the rod. If motion of the rod [...]
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A conducting rod of mass 200 gm and length 10 cm can slide without friction on two long ,
an induced current is developed in it ,
Some magnetic flux is changed from a coil of resistance 10Ω. As a result ,
which varies with time as shown in figure. Find the magnitude of the change in flux through the coil in weber. ,
A uniform magnetic field B = 0.5 T exists in a circular region of radius R = 5 m. A loop of radius R=5m encloses the magnetic field at t = 0 and then pulled at uniform speed v = 2 m/s In the plane of the paper. Find the induced emf (in V) in the loop at time t = 3 s.
21
Oct
A uniform magnetic field B = 0.5 T exists in a circular region of radius R = 5 m. A loop of radius R=5m encloses the magnetic field at t = 0 and then pulled at uniform speed v = 2 m/s In the plane of the paper. Find the induced emf (in V) in [...]
In Fig. ABCD is a fixed smooth conducting frame in horizontal plane. T is bulb of power 100 W,P is a smooth pulley and OQ is a conducting rod. Neglect the self-inductance of the loop and resistance of any part other than the bulb. The mass M is moving down with constant velocity 10 m/s. Bulb lights at its rated power due to induced emf in the loop due to earth’s magnetic field. Find the mass M (in kg) of teh block. (g = 10 ms^(2)`
21
Oct
In Fig. ABCD is a fixed smooth conducting frame in horizontal plane. T is bulb of power 100 W,P is a smooth pulley and OQ is a conducting rod. Neglect the self-inductance of the loop and resistance of any part other than the bulb. The mass M is moving down with constant velocity 10 m/s. [...]
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an induced current is developed in it ,
In Fig. ABCD is a fixed smooth conducting frame in horizontal plane. T is bulb of power 100 W ,
Some magnetic flux is changed from a coil of resistance 10Ω. As a result ,
which varies with time as shown in figure. Find the magnitude of the change in flux through the coil in weber. ,
A square wire loop of 10.0 cm side lies at right angles to a uniform magnetic field of 7 T. A 10 V light bulb is in a series with the loop as shown in the fig. The magnetic field is decreasing steadily to zero over a time interval Δt. The bulb will full brightness if Δt is equal to
21
Oct
A square wire loop of 10.0 cm side lies at right angles to a uniform magnetic field of 7 T. A 10 V light bulb is in a series with the loop as shown in the fig. The magnetic field is decreasing steadily to zero over a time interval Δt. The bulb will full brightness [...]
A long coaxial cable consists of two thin-walled conducting cylinder carries a steady current 0.1A, and the outer cylinder provides the return path for that current. The current produced a magnetic field between the two cylinders. Find the energy stored in the magnetic field for length 5 m of the cable. Express answer in Nj (use 1 n^2 = 0.7).
21
Oct
A long coaxial cable consists of two thin-walled conducting cylinder carries a steady current 0.1A, and the outer cylinder provides the return path for that current. The current produced a magnetic field between the two cylinders. Find the energy stored in the magnetic field for length 5 m of the cable. Express answer in Nj [...]
Tags:
A long coaxial cable consists of two thin-walled conducting cylinder carries a steady current 0.1A ,
an induced current is developed in it ,
Some magnetic flux is changed from a coil of resistance 10Ω. As a result ,
which varies with time as shown in figure. Find the magnitude of the change in flux through the coil in weber. ,
A circular coil of wire consits of exactly 100 turns with a total resistance 20 ohm. THe area of the coil is 100 cm^2. the coil is kept in a uniform magnetic field B as shown in figure. THe magnetic field is increased at a constant rate of 2 T/s. Find the induced current in the coil in A.
21
Oct
A circular coil of wire consits of exactly 100 turns with a total resistance 20 ohm. THe area of the coil is 100 cm^2. the coil is kept in a uniform magnetic field B as shown in figure. THe magnetic field is increased at a constant rate of 2 T/s. Find the induced current in [...]
Some magnetic flux is changed from a coil of resistance 10Ω. As a result, an induced current is developed in it, which varies with time as shown in figure. Find the magnitude of the change in flux through the coil in weber.
21
Oct
Some magnetic flux is changed from a coil of resistance 10Ω. As a result, an induced current is developed in it, which varies with time as shown in figure. Find the magnitude of the change in flux through the coil in weber. an induced current is developed in it Some magnetic flux is changed from [...]