Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
The energy band diagrams for three semiconductor samples of silicon are as shown. We can then assert that (1) sample X is undoped, while sample y and z have been doped with a third group
21
Oct
The energy band diagrams for three semiconductor samples of silicon are as shown. We can then assert that (1) sample X is undoped, while sample y and z have been doped with a third group The energy band diagrams for three semiconductor samples of silicon are as shown. We can then assert that (1) sample [...]
In a semiconducting material, the mobilities of electron and holes are mu e and mu h, respectively. Which of the following is true ?
21
Oct
In a semiconducting material, the mobilities of electron and holes are mu e and mu h, respectively. Which of the following is true ? In a semiconducting material respectively. Which of the following is true ? the mobilities of electron and holes are mu e and mu h October 21, 2020 Category: Uncategorised (JEE Advanced [...]
Which of the following energy band diagram shows the n-type semiconductor ?
21
Oct
Which of the following energy band diagram shows the n-type semiconductor ? Which of the following energy band diagram shows the n-type semiconductor ? October 21, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Let np and ne be the number of holes and conduction electrons, respectively, in a semiconductor. Then
21
Oct
Let np and ne be the number of holes and conduction electrons, respectively, in a semiconductor. Then in a semiconductor. Then Let np and ne be the number of holes and conduction electrons respectively October 21, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
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 [...]
Tags:
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 ,
Wires P and Q have the same resistance at ordinary (room) temperature. When heated, resistance of P increases and that of Q decreases. We conclude that
21
Oct
Wires P and Q have the same resistance at ordinary (room) temperature. When heated, resistance of P increases and that of Q decreases. We conclude that resistance of P increases and that of Q decreases. We conclude that Wires P and Q have the same resistance at ordinary (room) temperature. When heated October 21, 2020 [...]
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. [...]
Electronic configuration of germanium is 2, 8, 18 and 4. To make it extrinsic semiconductor, small quantity of antimony is added. Then
21
Oct
Electronic configuration of germanium is 2, 8, 18 and 4. To make it extrinsic semiconductor, small quantity of antimony is added. Then 18 and 4. To make it extrinsic semiconductor 8 Electronic configuration of germanium is 2 small quantity of antimony is added. Then October 21, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]
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 [...]