EASY
12th CBSE
IMPORTANT
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Establish a relation between current and drift velocity.

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 22
Define the term resistance. Give physical explanation of the opposition offered by a conductor to the flow of current through it.
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>Text Based Exercises>Q 23
Explain the colour code for carbon resistors with illustrations.
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>Text Based Exercises>Q 24
Three resistances R1,R2 and R3 are connected in series. Find their equivalent resistance.
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>Text Based Exercises>Q 25
Three resistances R1,R2 and R3 are connected in parallel. Find the equivalent resistance of the parallel combination.
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>Text Based Exercises>Q 26
What is superconductivity ? Explain. State two applications of superconductors.
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>Text Based Exercises>Q 27
What are superconductors? Give two applications of the phenomenon of superconductivity.
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>Text Based Exercises>Q 28
What is Meissner effect? What does it indicate about the magnetic nature of superconductors?
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>Text Based Exercises>Q 29
What are ohmic and non-ohmic resistors? Give one example of each.