Physicshard · Past Paper
The resistivity of a certain material is 0.1 Ohm-meter. What is its conductivity?
A0.1 S/m
B1 S/m
C10 S/m
D100 S/m
✓ Correct Answer: C — 10 S/m
Conductivity is the reciprocal of resistivity: σ = 1/ρ = 1/0.1 = 10 Siemens per meter.
Share this question
More from Physics
- For a body starting from rest and moving with uniform acceleration, the distance traveled is proportional to:
- The energy possessed by a compressed spring is:
- In a concave mirror, if the object is at infinity, the image is formed at:
- A stone is thrown vertically upwards with velocity u. It returns to the ground in time T. The value of T is:
- An object of mass 1 kg has a kinetic energy of 1 Joule. Its speed is: