- AIn the positive charges.
- BIn both the positive and negative charges.
- CIn the field between the plates.
- DAround the edges of the capacitor plates.
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If a drop of water is introduced between the glass plate and a convex lens in a Newton's ring system, the ring system:
Electromotive force is the force, which is able to maintain a constant
|
(a) Current |
(b) Resistance |
(c) Power |
(d) Potential difference |
An electron moving with a uniform velocity along the positive x-direction enters a magnetic field directed along the positive y-direction. The force on the electron is directed along
|
(a) Positive y-direction |
(b) Negative y-direction |
|
(c) Positive z-direction |
(d) Negative z-direction |
An electric dipole is put in north-south direction in a sphere filled with water. Which statement is correct
|
(a) Electric flux is coming towards sphere |
|
(b) Electric flux is coming out of sphere |
|
(c) Electric flux entering into sphere and leaving the sphere are same |
|
(d) Water does not permit electric flux to enter into sphere |
Consider a radioactive material of half-life 1.0 minute. If one of the nuclei decays now, the next one will decay
|
(a) After 1 minute |
|
(b) After |
|
(c) After |
|
(d) After any time |
Two identical batteries, each of e.m.f. 2 volt and internal resistance 1.0 ohm are available to produce heat in an external resistance R = 0.5 ohm by passing a current through it. The maximum Joulean power that can be developed across R using these batteries is
|
(a) 1.28 watt |
(b) 2.0 watt |
(c) |
(d) 3.2 watt |
Which of the following planets have rings around it
|
(a) Uranus |
(b) Mars |
(c) Jupiter |
(d) Saturn |