33 Questions Available
Showing 20 questions on this page
For two statements are given-one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below:
(a) Both A and R are true, and R is correct explanation of the assertion.
(b) Both A and R are true, but R is not the correct explanation of the assertion.
(c) A is true, but R is false.
(d) A is false, but R is true.
Assertion: Good conductors of heat are also good conductors of electricity and vice versa.
Reason: Mainly electrons are responsible for conduction.
Define electric current.
List two differences between a voltmeter and ammeter.
For two statements are given-one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below:
(a) Both A and R are true, and R is correct explanation of the assertion.
(b) Both A and R are true, but R is not the correct explanation of the assertion.
(c) A is true, but R is false.
(d) A is false, but R is true.
Assertion: A current carrying wire should be charged.
Reason: The current in a wire is due to flow of free electrons in a definite direction.
What is meant by potential difference between two points?
Define 1 volt electric potential.
Define electric potential.
Which end of a dry cell is at higher potential?
Why does current flow in iron but not in wood (both have electrons)?
Formula, graph, and resistance calculation
State Ohm's Law and how to verify it
When is resistance of a wire = 1Ω?
Instruments to measure current and potential difference?
4Ω series with (3Ω ∥ 6Ω), Battery = 12V current through 3Ω
Define electric current, unit, and define ohm
Explain "current = 1 ampere" in terms of charge
Potential difference across 4Ω, 6Ω, 10Ω in series with 5V
Verify Ohm's Law from data + find resistance
Resistance of copper wire (L = 1m, A = 2mm², ρ = 1.7×10⁻⁸ Ω·m)
Three identical bulbs in parallel (6A total) one fuses, new total current?