A metal rod of length l cuts across a uniform magnetic field B with a velocity v.
A metal rod of length l cuts across a uniform magnetic field B with a velocity v. If the resistance…
7 years ago
KL2013
Two charged particles have charges and masses in the ratio 2:3 and 1:4 respectively.
Two charged particles have charges and masses in the ratio 2:3 and 1:4 respectively. If they enter a uniform magnetic…
7 years ago
Radii of curvature of a converging lens are in the rato 1:2. Its focal length
Radii of curvature of a converging lens are in the ratio 1:2. Its focal length is 6 cm and refractive…
7 years ago
When we close one slit in the young’s double slit experiment, then
When we close one slit in the young's double slit experiment, then Options (a) the bandwidth increased (b) the bandwidth…
7 years ago
A soap bubble is charged to a potential 12V. If its radius is doubled,
A soap bubble is charged to a potential 12V. If its radius is doubled, then the potential of the bubble…
7 years ago
The force of repulsion between two electrons at a certain distance is F.
The force of repulsion between two electrons at a certain distance is F. The force between two protons separated by…
7 years ago
The output of an AND gate is connected to both the inputs of a NOR gate,
The output of an AND gate is connected to both the inputs of a NOR gate, then this circuit will…
7 years ago
If the feedback voltage is increased in a negative feedback amplifier, then
If the feedback voltage is increased in a negative feedback amplifier, then Options (a) both gain and distortion decrease (b)…
7 years ago
In p- type semiconductor, the acceptor level lies
In p- type semiconductor, the acceptor level lies Options (a) near the conduction band (b) halfway between conduction and valence…
7 years ago
In a ionised gas,the mobile charge carriers are
In a ionised gas,the mobile charge carriers are Options (a) electrons (b) both positive ad negative ions (c) electrons and…
7 years ago