10th Class Physics MCQS
a fuse is connected in series with:
neutral wire
live wire
cable wire
earth wire
According to ohm’s law V= :
I/R
IR
I2R
IR2
battery is one of the source of:
heat
light
sound
current
in a dry cell, chemical energy changes into:
mechanical energy
kinetic energy
electrical energy
potential energy
diamond des not conduct electricity, because it has no:
free neutrons
free electrons
free protons
free positive charge
When resistances are connected in series the current passing through them is:
The same
Different
None of these
Zero
The reason carbon dating work is that.
Plants and animals are such strong emitters of carbon 14
When a plant or animal dies.
There is so much non radioactive carbon dioxide in the air
After a plant or animal dies, it stops in fresh carbon
The current which does not change its direction is called:
Conventional
A.C
Transient current
D.C
The half life of argon nuclide Ar 40 is:
2 .2x 108years
2.4x 108years
2 x 108 years
2.8x 108years
with the increase in temperature the resistance of pure metals:
remains same
decreases
increases
none of these
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