Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Five equal resistances each of resistance R are connected as shown in the figure. A battery of V volts is connected between A and B. The current flowing in AFCEB will be
|
(a) |
(b) |
(c) |
(d) |
Two nucleons are at a separation of 1 
. The net force between them is 
, if both are neutrons, 
if both are protons and 
if one is a proton and other is a neutron. In such a case
|
(a) |
(b) |
(c) |
(d) |
In the circuit shown in figure, the heat produced in 5 ohm resistance is 10 calories per second. The heat produced in 4 resistance is
|
(a) 1 cal / sec |
(b) 2 cal/sec |
(c) 3 cal / sec |
(d) 4 cal/sec |
A step-up transformer operates on a 230 V line and supplies a load of 2 ampere. The ratio of the primary and secondary windings is 1 : 25. The current in the primary is
|
(a) 15 A |
(b) 50 A |
(c) 25 A |
(d) 12.5 A |
Three capacitances of capacity 10 μF, 5 μF and 5 μF are connected in parallel. The total capacity will be
|
(a) 10 μF |
(b) 5 μF |
(c) 20 μF |
(d) None of the above |
The capacities of two conductors are 
and 
and their respective potentials are 
and 
. If they are connected by a thin wire, then the loss of energy will be given by
|
(a) |
(b) |
(c) |
(d) |
