A logic gate is an electronic circuit which
|
(a) Makes logic decisions |
|
(b) Allows electrons flow only in one direction |
|
(c) Works binary algebra |
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(d) Alternates between 0 and 1 values |
(a) Makes logic decisions
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Two conducting spheres of radii 5 cm and 10 cm are given a charge of 15 μC each. After the two spheres are joined by a conducting wire, the charge on the smaller sphere is
|
(a) 5 μC |
(b) 10 μC |
(c) 15 μC |
(d) 20 μC |
Two coherent light sources S1 and S2 (l= 6000 Å) are 1mm apart from each other. The screen is placed at a distance of 25 cm from the sources. The width of the fringes on the screen should be
|
(a) 0.015 cm |
(b) 0.025 cm |
(c) 0.010 cm |
(d) 0.030 cm |
In the following circuit find I1 and I2
|
(a) 0, 0 |
(b) 5 mA, 5 mA |
(c) 5 mA, 0 |
(d) 0, 5 mA |
The angle which subtends the periphery of the spherical mirror at the centre of curvature is called:
The formula for induced e.m.f. in a coil due to change in magnetic flux through the coil is (here A = area of the coil, B = magnetic field)
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(a) e = - A. |
(b) e = -B. |
(c) e = - |
(d) e = - |
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 |
