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
- If a machine does 500 J of work in 10 seconds, its power is:
- Density of water is maximum at:
- At what depth from the surface of Earth does the value of 'g' become half of its surface value? (R is Earth radius)
- What is the tendency of a body to remain at rest or in uniform motion called?
- The state of a body when the net force acting on it is zero and it is falling under gravity is called: