- AStatic current
- BConventional current
- CElectronic current
- DPotential current
Explanation:
The carriers of electric current are electrons. The current in a circuit is due to the flow of electrons. Therefore, the direction of the conventional current is opposite to the direction of flow of electrons.
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Condenser A has a capacity of 15μF when it is filled with a medium of dielectric constant 15. Another condenser B has a capacity of 1 μF with air between the plates. Both are charged separately by a battery of 100 V. After charging, both are connected in parallel without the battery and the dielectric medium being removed. The common potential now is
|
(a) 400 V |
(b) 800 V |
(c) 1200 V |
(d) 1600 V |
In the circuit shown in the figure, the current through
| (a) The 3 W resistor is 0.50A |
(b) The 3 W resistor is 0.25 A |
|
(c) The 4 W resistor is 0.50A |
(d) The 4 W resistor is 0.25 A |
The neutron was discovered by
|
(a) Marie Curie |
(b) Pierre Curie |
(c) James Chadwick |
(d) Rutherford |
An air bubble in sphere having 4 cm diameter appears 1 cm from surface nearest to eye when looked along diameter. If amg = 1.5, the distance of bubble from refracting surface is
|
(a) 1.2 cm |
(b) 3.2 cm |
(c) 2.8 cm |
(d) 1.6 cm |
Select the correct alternative, The angle between the normal and refracted ray is called:
The variation of anode current in a triode corresponding to a change in grid potential at three different values of the plate potential is shown in the diagram. The mutual conductance of the triode is
| (a) 2.5 m mho | (b) 5.0 m mho |
(c) 7.5 m mho |
(d) 10.0 m mho |