MCQs On Conductor and Conductance
1. The unit of conductance cannot be expressed in
(a) mho
(b) (ohm)-1
(c) siemens
(d) ohm/m
Answer: (d)
2. The SI unit of specific resistance is
(a) ohm m
(b) ohm/m
(c) ohm/m2
(d) (ohm)-1
Answer: (a)
3. The reciprocal of resistivity of a conductor is
(a) conductance
(b) capacitance
(c) conductivity
(d) none of these
Answer: (c)
4. In order to measure current in a resistance present in a circuit, the ammeter is connected
(a) in series
(b) in parallel
(c) in series or parallel
(d) nothing can be decided
Answer: (a)
5. Good conductors have many loosely bound
(a) atoms
(b) protons
(c) molecules
(d) electrons
Answer: (d)
6. The reciprocal of electrical resistance is
(a) voltage
(b) current
(c) conductance
(d) none of the above
Answer: (c)
7. The element with the highest conductivity is
(a) gold
(b) silver
(c) copper
(d) platinum
Answer: (b)
8. As temperature increases electrolytic conduction
(a) increases
(b) decreases
(c) remains unaffected
(d) none of the above
Answer: (a)
9. The resistance of a conductor varies inversely as
(a) length
(b) area of cross-section
(c) temperature
(d) Resistivity
Answer: (b)
10. With a rise in temperature, the resistance of semiconductors
(a) decreases
(b) increases
(c) first, increase and then decrease
(d) remains constant
Answer: (a)
