- AConductor.
- BInsulator.
- CSuper-conductor.
- DFerromagnetic.
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$\frac{\text{W}}{2}$
$2^{\frac{1}{3}}$ W at the planet.
Substance on the choroid is
|
(a) Japan black |
(b) Nigrim pigment |
(c) Carbon black |
(d) Platinum black |
A homogeneous electric field E and a uniform magnetic field are pointing in the same direction. A proton is projected with its velocity parallel to
. It will
|
(a) Go on moving in the same direction with increasing velocity |
|
(b) Go on moving in the same direction with constant velocity |
|
(c) Turn to its right |
|
(d) Turn to its left |
The resistance of 10 metre long potentiometer wire is 1ohm/meter. A cell of e.m.f. 2.2 volts and a high resistance box are connected in series to this wire. The value of resistance taken from resistance box for getting potential gradient of 2.2 millivolt/metre will be
|
(a) 790 Ω |
(b) 810 Ω |
(c) 990 Ω |
(d) 1000 Ω |