have diameters 0.2 m and 2 m. A time varying potential difference ( 4+ 2.5 t ) volt is applied to the larger loop. Calculate the current in the smaller loop.
Sahay Sir > Question Answers > have diameters 0.2 m and 2 m. A time varying potential difference ( 4+ 2.5 t ) volt is applied to the larger loop. Calculate the current in the smaller loop.
The figure shows certain wire segments joined together to form a coplanar loop. The loop is placed in a perpendicular magnetic field in the direction going into the plane of the figure. The magnitude of the field increases with time I1 and I2 are the currents in the segments ab and cd. Then,
21
Oct
The figure shows certain wire segments joined together to form a coplanar loop. The loop is placed in a perpendicular magnetic field in the direction going into the plane of the figure. The magnitude of the field increases with time I1 and I2 are the currents in the segments ab and cd. Then, have diameters [...]
A circular loop of radius 0.3 cm lies parallel to amuch bigger circular loop of radius 20 cm. The centre of the small loop is on the axis of the bigger loop. The distance between their centres is 15 cm. If a current of 2.0 A flows through the smaller loop, then the flux linked with bigger loop is
21
Oct
A circular loop of radius 0.3 cm lies parallel to amuch bigger circular loop of radius 20 cm. The centre of the small loop is on the axis of the bigger loop. The distance between their centres is 15 cm. If a current of 2.0 A flows through the smaller loop, then the flux linked [...]
A metallic rod of length ‘l’ is tied to a string of length 2l and made to rotate with angular speed w on a horizontal table with one end of the string fixed. If there is a vertical magnetic field ‘B’ in the region, the e.m.f. Induced across the ends of the rod is
21
Oct
A metallic rod of length ‘l’ is tied to a string of length 2l and made to rotate with angular speed w on a horizontal table with one end of the string fixed. If there is a vertical magnetic field ‘B’ in the region, the e.m.f. Induced across the ends of the rod is have [...]
A coil is suspended in a uniform magnetic field, with the plane of the coil parallel to the magnetic lines of force. When a current is passed through the coil it starts oscillating and it is very difficult to stop. But if an aluminium plate is placed near to the coil, it stops. This is due to :
21
Oct
A coil is suspended in a uniform magnetic field, with the plane of the coil parallel to the magnetic lines of force. When a current is passed through the coil it starts oscillating and it is very difficult to stop. But if an aluminium plate is placed near to the coil, it stops. This is [...]
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A coil is suspended in a uniform magnetic field ,
have diameters 0.2 m and 2 m. A time varying potential difference ( 4+ 2.5 t ) volt is applied to the larger loop. Calculate the current in the smaller loop. ,
Two concentric coplanar circular loops made of wire with resistance per unit length 10^−4 Ω/m ,
A rectangular loop has a sliding connector PQ of length l and resistance R(Ω) and it is moving with a speed v as shown. The set-up is placed in a uniform magnetic field going into the plane of the paper. The three currents I1, I2 and I are
21
Oct
A rectangular loop has a sliding connector PQ of length l and resistance R(Ω) and it is moving with a speed v as shown. The set-up is placed in a uniform magnetic field going into the plane of the paper. The three currents I1, I2 and I are have diameters 0.2 m and 2 m. [...]
A massless non conducting rod AB of length 2l is placed in uniform time varying magnetic field confined in a cylindrical region of radius (R>l) as shown in the figure. The center of the rod coincides with the centre of the cylin- drical region. The rod can freely rotate in the plane of the Figure about an axis coinciding with the axis of the cylinder. Two particles, each of mass m and charge q are attached to the ends A and B of the rod. The time varying magnetic field in this cylindrical region is given by B=B0[1−t2] where B0 is a constant. The field is switched on at time t=0. Consider B0=100T,l=4cmqm=4π100C/kg. Calculate the time in which the rod will reach position CD shown in the figure for th first time. Will end A be at C or D at this instant ?
21
Oct
A massless non conducting rod AB of length 2l is placed in uniform time varying magnetic field confined in a cylindrical region of radius (R>l) as shown in the figure. The center of the rod coincides with the centre of the cylin- drical region. The rod can freely rotate in the plane of the Figure [...]
A copper wire of length 2 m placed perpendicular to the plane of magnetic field B = (2 i + 4 j ) T. If moves with velocity ( 4 i + 6 j + 8 k ) m/s. Calculate the magnitude of dynamic emf ( in volt ) across its ends.
21
Oct
A copper wire of length 2 m placed perpendicular to the plane of magnetic field B = (2 i + 4 j ) T. If moves with velocity ( 4 i + 6 j + 8 k ) m/s. Calculate the magnitude of dynamic emf ( in volt ) across its ends. have diameters 0.2 [...]
Two concentric coplanar circular loops made of wire with resistance per unit length 10^−4 Ω/m, have diameters 0.2 m and 2 m. A time varying potential difference ( 4+ 2.5 t ) volt is applied to the larger loop. Calculate the current in the smaller loop.
21
Oct
Two concentric coplanar circular loops made of wire with resistance per unit length 10^−4 Ω/m, have diameters 0.2 m and 2 m. A time varying potential difference ( 4+ 2.5 t ) volt is applied to the larger loop. Calculate the current in the smaller loop. have diameters 0.2 m and 2 m. A time [...]