- Ajoining high resistor in parallel
- Bjoining low resistor in series
- ✓joining high resistor in series
- Djoining low resistor in parallel
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Assertion : The force with which one plate of a parallel plate capacitor is attracted towards the other plate is equal to square of surface density per e per unit area.
Reason : The electric field due to one charged plate of the capacitor at the location of the other is equal to surface density per e.
|
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. |
|
(b) If both assertion and reason are true but reason is not the correct explanation of the assertion. |
|
(c) If assertion is true but reason is false. |
|
(d) If the assertion and reason both are false. |
When a copper voltameter is connected with a battery of e.m.f. 12 volts. 2 gms of copper is deposited in 30 minutes. If the same voltameter is connected across a 6 volt battery, then the mass of copper deposited in 45 minutes would be
|
(a) 1 gm |
(b) 1.5 gm |
(c) 2 gm |
(d) 2.5 gm |

The relationship between λ and half life (
of a radioactive substance is
|
(a) λ = |
(b) λ = |
(c) λ = |
(d) λ = |
Assertion : A narrow pulse of light is sent through a medium. The pulse will retain its shape as it travels through the medium.
Reason : A narrow pulse is made of harmonic waves with a large range of wavelengths.
|
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. |
|
(b) If both assertion and reason are true but reason is not the correct explanation of the assertion. |
|
(c) If assertion is true but reason is false. |
|
(d) If assertion is false but reason is true. |
Ionization energy of hydrogen is 13.6 eV. If h = 6.6
, the value of R will be of the order of
|
(a) |
(b) |
(c) |
(d) |
In the figure shown, the total resistance between A and B is
|
(a) 12 Ω |
(b) 4 Ω |
(c) 6 Ω |
(d) 8 Ω |
Four wires AB, BC, CD, DA of resistance 4 ohm each and a fifth wire BD of resistance 8 ohm are joined to form a rectangle ABCD of which BD is a diagonal. The effective resistance between the points A and B is
|
(a) 24 ohm |
(b) 16 ohm |
(c) |
(d) |
The potential difference between points A and B of adjoining figure is

|
(a) |
(b) |
(c) |
(d) 2 V |