Question
In the figure shown, the effective capacitance between the points A and B, if each has capacitance C, is
|
(a) 2C |
(b) |
(c) 5C |
(d) |
✓
Answer
(a) 2C
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Capacitance (in F) of a spherical conductor with radius 1m is
|
(a) 1.1 |
(b) |
(c) 9 × |
(d) |
A hollow sphere and a solid sphere having same mass and same radii are rolled down a rough inclined plane:
- The hollow sphere reaches the bottom first.
- The solid sphere reaches the bottom with greater speed.
- The solid sphere reaches the bottom with greater kinetic energy.
- The two spheres will reach the bottom with same linear momentum.
To get an output Y=1 from the circuit above, the input must be:
Compton effect shows that
|
(a) X-rays are waves |
(b) X-rays have high energy |
|
(c) X-rays can penetrate matter |
(d) Photons have momentum |
A microscope is focussed on a coin lying at the bottom of a beaker. The microscope is now raised up by 1 cm. To what depth should the water be poured into the beaker so that coin is again in focus ? (Refractive index of water is 
)
|
(a) 1 cm |
(b) |
(c) 3 cm |
(d) 4 cm |
If intensity of incident light is increased in PEE then which of the following is true
|
(a) Maximum K.E. of ejected electron will increase |
|
(b) Work function will remain unchanged |
|
(c) Stopping potential will decrease |
|
(d) Maximum K.E. of ejected electron will decrease |
Maximum value of voltage in an ac circuit is 282 V. The effective magnitude of voltage is:
A concave lens of focal length 20 cm placed in contact with a plane mirror acts as a
|
(a) Convex mirror of focal length 10 cm |
|
(b) Concave mirror of focal length 40 cm |
|
(c) Concave mirror of focal length 60 cm |
|
(d) Concave mirror of focal length 10 cm |
Image formed on the retina is
|
(a) Real and inverted |
(b) Virtual and erect |
|
(c) Real and erect |
(d) Virtual and inverted |
Resistivity of which of the following substance decrease on increasing the temperature?