Question

The resistance of a component can be found by measuring the potential difference across it and the ________ That travelled through it.

20points! Thanks ;)

Answer 1

The resistance of a component can be found by measuring the potential difference across it and the current that travelled through it.

hope it helps.

Answer 2

The resistance of a component can be found by measuring the potential difference across it and the current that traveled through it.

Ohm's Law

• According to Ohm's Law, the potential difference in a conductor is directly proportional to the current that passes through it.

• Mathematically,

                                                  V ∝ I

• When the proportionality sign is removed, the constant calculated is resistance.

• Thus, we get the relation V = IR

The Experimental Setup

• While calculating the resistance of a component, the voltage is provided by a battery and measured by a voltmeter.
• The terminals of the voltmeter are connected in parallel across the component.
• The current is calculated using an ammeter. The ammeter is connected in series with the component.
• Thus, the resistance is calculated using Ohm's Law.

Hence the answer that fills the blank is 'CURRENT.'