If r be the distance of a point on the axis of a magnetic dipole from its centre
If r be the distance of a point on the axis of a magnetic dipole from its centre then the…
6 years ago
UK2015
A proton is projected with a speed of 3×10⁶ m/s horizontally from east to west.
A proton is projected with a speed of 3x10⁶ m/s horizontally from east to west. An uniform magnetic field of…
6 years ago
An isolated sphere has a capacitance of 50pF. What would be the radius of the sphere?
An isolated sphere has a capacitance of 50pF. What would be the radius of the sphere? Options (a) 90cm (b)…
6 years ago
Calculate the charge on equivalent capacitance of the conbination shown in figure
Calculate the charge on equivalent capacitance of the conbination shown in figure between the points P and N Options (a)…
6 years ago
In a common emitter transistor amplifier, the voltage gain is
In a common emitter transistor amplifier, the voltage gain is Options (a) αRᴀс/Rᵢn (b) αRᵢn/Rᴀс (c) βRᴀс/Rᵢn (d) βRᵢn/Rᴀс Correct…
6 years ago
When an input signal 1 is applied to a NOT gate, then its output is
When an input signal 1 is applied to a NOT gate, then its output is Options (a) 1 (b) 0…
6 years ago
In a transistor, the value of βis 100, then the value of α will be
In a transistor, the value of β is 100, then the value of α will be Options (a) 0.01 (b)…
6 years ago
The impurity atoms with which pure silicon may be doped to make it a p-type
The impurity atoms with which pure silicon may be doped to make it a p-type semiconductor are those of Options…
6 years ago
A beam of light of wavelength 590 nm is focussed by a converging lens of diameter
A beam of light of wavelength 590 nm is focussed by a converging lens of diameter 10 cm at a…
6 years ago
An object is seen through a simple microscope of focal length 12 cm.
An object is seen through a simple microscope of focal length 12 cm. What will be the angular magnification produced,…
6 years ago