Specific resistance of aluminium in (10-8 Ω.m) is:
1.7
2.75
5.25
1.69
Information storage device work on the principles of:
Heat
Sound
Light
Magnetism
What type of graph is in between V and I, if metal obeys ohm’s law:
Curved
Parabola
Straight line
None of these
Intensity level of the sound produced by mosquito buzzing is:
70 dB
40 dB
10 dB
120 dB
Which type of image is formed by a convex lens on a screen:
Inverted and real
Inverted and virtual
Upright and real
Upright and virtual