EASY
12th CBSE
IMPORTANT
Earn 100

How does resistivity of alloy manganin change with temperature ?

Important Questions on Current Electricity

EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>Text Based Exercises>Q 36
How does the resistance of an insulator change with temperature ?
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>Text Based Exercises>Q 37
Name two parameters which determine the resistivity of a material.
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>Text Based Exercises>Q 38
How is the conductivity of an electrolyte affected by the increase of temperature ?
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>Text Based Exercises>Q 39
If potential difference V applied across a conductor is increased to 2V, how will the drift velocity of the electrons change ?
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>Text Based Exercises>Q 40
What is a non-ohmic device ? State one example.
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>Text Based Exercises>Q 41
What is a linear resistor?
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>Text Based Exercises>Q 42
Give an example of non-ohmic device which shows up negative resistance.
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>Text Based Exercises>Q 43
A cell of emf 'ξ' and internal resistance 'r' draws a current 'I'. Write the relation between terminal voltage 'V' in terms of ξ, I and r.