alleryIn the setup used for verifying Ohm's law, the instrument that must be connected across the conductor whose resistance is being studied is the
Aammeter
Bvoltmeter
Crheostat
Dkey
Answer & Solution
Correct answer: B. voltmeter
To measure the potential difference across the conductor, a voltmeter is connected in parallel across it.
An ammeter is connected in series to measure the current through the conductor.
Keep practising Effects of Electric Current
Browse all Effects of Electric Current questions for JEE Advanced, or explore more Science topics.
Related questions
A circular coil of radius $R$ carries current $I$. The magnetic field at the centre of theThree identical resistors, each of resistance $R$, are connected in **parallel**. The equiOhm's law states that, for an ohmic conductor at constant temperature:What is the electric field at the centre of a hollow conducting sphere of radius $R$ carryFor a conductor obeying Ohm's law, which equation correctly relates potential difference $The quantity $R = \dfrac{V}{I}$ for a conductor is called itsOhm's law is valid under the condition that theIf the potential difference across an ohmic conductor is doubled while temperature remains