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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: Good conductors of heat are also good conductors of electricity and vice versa.
Reason: Mainly electrons are responsible for conduction.
Define electric potential.
What is meant by potential difference between two points?
Define 1 volt electric potential.
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.
State Ohm's Law and how to verify it
Charge through appliance (0.4A, 1 hour)
Why does current flow in iron but not in wood (both have electrons)?
Which unit = product of the other two (volt, ohm, ampere)?
Verify Ohm's Law from data + find resistance
Series = 90Ω, Parallel = 20Ω. Find individual resistances
4Ω series with (3Ω ∥ 6Ω), Battery = 12V current through 3Ω
Formula, graph, and resistance calculation
Resistance of copper wire (L = 1m, A = 2mm², ρ = 1.7×10⁻⁸ Ω·m)
When is resistance of a wire = 1Ω?
Instruments to measure current and potential difference?
Which end of a dry cell is at higher potential?
Explain "current = 1 ampere" in terms of charge