Suppose that a 32-meter length of resistive wire is connected across the terminals of a battery. If a voltmeter reads 21 V when connected across the battery terminals, what should it read when connected across a 18-meter section of the wire? Enter you answers using one decimal place, do not enter units.
e = iR
The Attempt at a Solution
thought the voltage doesn't change.
but I think its wrong. Please help?