The capacitor of capacitance 4 μF and 6 μF are connected in series. A potential difference of 500 volts is applied to the outer plates of the two capacitor system. The potential difference across the plates of capacitor of 4 μF capacitance is
|
(a) 500 volts |
(b) 300 volts |
(c) 200 volts |
(d) 250 volts |
(b) 300 volts
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Two capacitances of capacity 
and 
are connected in series and potential difference V is applied across it. Then the potential difference across will be
|
(a) |
(b) |
(c) |
(d) |
A logic gate is an electronic circuit which
|
(a) Makes logic decisions |
|
(b) Allows electrons flow only in one direction |
|
(c) Works binary algebra |
|
(d) Alternates between 0 and 1 values |
A cube of side l is placed in a uniform field E, where E = E
. The net electric flux through the cube is
|
(a) Zero |
(b) |
(c) 4 |
(d) 6 |
A wire in the form of a circular loop of one turn carrying a current produces a magnetic field B at the centre. If the same wire is looped into a coil of two turns and carries the same current, the new value of magnetic induction at the centre is
|
(a) 5B |
(b) 3B |
(c) 2B |
(d) 4B |
The north and south poles of two identical magnets approach a coil, containing a condenser, with equal speeds from opposite sides. Then
|
(a) Plate 1 will be negative and plate 2 positive |
|
(b) Plate 1 will be positive and plate 2 negative |
|
(c) Both the plates will be positive |
|
(d) Both the plates will be negative |
