- ASouth pole to north pole.
- BNorth pole to south pole.
- CEast to west.
- DWest to east.
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Which one statement is correct ? A parallel plate air condenser is connected with a battery. Its charge, potential, electric field and energy are
and
respectively. In order to fill the complete space between the plates a dielectric slab is inserted, the battery is still connected. Now the corresponding values Q, V, E and U are in relation with the initially stated as
|
(a) Q > |
(b) |
(c) V > |
(d) |
The universal property of all substances is
|
(a) Diamagnetism |
(b) Ferromagnetism |
(c) Paramagnetism |
(d) All of these |
Due to 10 ampere of current flowing in a circular coil of 10 cm radius, the magnetic field produced at its centre is 3.34 . The number of turns in the coil will be
|
(a) 5000 |
(b) 100 |
(c) 50 |
(d) 25 |
The ammeter A reads 2 A and the voltmeter V reads 20 V. the value of resistance R is (Assuming finite resistance's of ammeter and voltmeter)
|
(a) Exactly 10 ohm |
(b) Less than 10 ohm |
|
(c) More than 10 ohm |
(d) We cannot definitely say |