Question :
A) they contain free electrons
B) the atoms are lightly packed
C) they have high melting point
D) All of the above
Answer : A
Metals are good conductors of electricity because
A) they contain free electrons
B) the atoms are lightly packed
C) they have high melting point
D) All of the above
Answer : A
Description :
Related Questions - 1
If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same
A) velocity
B) momentum
C) acceleration
D) kinetic energy
Related Questions - 2
It is more difficult to walk on a sandy road than on a concrete road because
A) sand is soft and concreter is hard
B) the friction between sand and feet is less than that between concrete and feet
C) the friction between sand and feet is more than that between concrete and feet
D) the sand is grainy but concrete is smooth
Related Questions - 3
Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2
A) 0.14 m/s
B) 140 m/s
C) 1.4 km/s
D) 14 m/s
Related Questions - 4
The absorption of ink by blotting paper involves
A) viscosity of ink
B) capillary action phenomenon
C) diffusion of ink through the blotting
D) siphon action
Related Questions - 5
Mirage is due to
A) unequal heating of different parts of the atmosphere
B) magnetic disturbances in the atmosphere
C) depletion of ozone layer in the atmosphere
D) equal heating of different parts of the atmosphere