- Amedium between the coils
- Bseparation between the two coils
- Corientation of the two coils
- Dall of the above
Explanation:
The flux linked with two coils will depend upon the angle between the two coils. If their planes are parallel, then magnetic flux from one would completely pass through the other. If the planes are perpendicular, no flux due to any of the coils would flow through the other.
The size of the two coils may be different which will affect the number of lines crossing the coil. The medium, if magnetic, will concentrate the field lines. Thus, all parameters would affect the inductance between them.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Assuming that the dimmest visible star to the naked eye has a magnitude of about 6. Brightness of planet Venus (magnitude = – 4) w.r.t. this star is
|
(a) 10,000 times brighter |
(b) 2000 times brighter |
|
(c) 15000 times brighter |
(d) 4000 times brighter |
In a double slit arrangement fringes are produced using light of wavelength 4800 Å. One slit is covered by a thin plate of glass of refractive index 1.4 and the other with another glass plate of same thickness but of refractive index 1.7. By doing so the central bright shifts to original fifth bright fringe from centre. Thickness of glass plate is
|
(a) 8 mm |
(b) 6 mm |
(c) 4 mm |
(d) 10 mm |
The combination of the gates shown in the figure below produces

|
(a) NOR gate |
(b) OR gate |
(c) AND gate |
(d) XOR gate |
At ordinary temperatures, the electrical conductivity of semi conductors in mho/meter is in the range
|
(a) |
(b) |
(c) |
(d) |

A horizontal straight conductor kept in north-south direction falls under gravity, then
|
(a) A current will be induced from South to North |
|
(b) A current will be induced from North to South |
|
(c) No induce e.m.f. along the length of conductor |
|
(d) An induced e.m.f. is generated along the length of conductor |
The relation between n1 and n2, if behaviour of light rays is as shown in figure is

|
(a) |
(b) |
(c) |
(d) |