A 2k ohm resistor and a 25micro farad capacitor are connected across a50volt supply. Draw graphs,to show how the capacitor voltage varieswith time.and how the charging current varies with time.

Your graph would resemble two "Bell Curves" forming an "X". The curve going down from the upper left would be charging current as the Cap becomes fully charged. The curve going up from the lower left would be the voltage. The bottom of the graph would be time in micro-seconds.

The graph of charging current increases exponentially from 0

What is the resistance of a voltmeter on the 180 V scale if the meter sensitivity is 25,000 /V?