A voltmeter has high/low resistance.

Why an ammeter has low resistance while a voltmeter has high resistance?

Why should a voltmeter have as large resistance as possible?

Why an ammeter should have as low resistance as possible?

One low resistance is connected in parallel to a high resistance. Show that their equivalent resistance is of the order of low resistance.

A moving coil galvanometer has resistance 50 Omega . The maximum bearable current is 100mA. How will you convert it into (i) a voltmeter to record 100V p.d.? and (ii) an ammeter to measure 5A current?

A galvanometer has an internal resistance of 1.0 ohm. It gives maximum deflection for current of 50 mA. Show how it can be converted into (i) a voltmeter with a maximum reading a of 2.5 volts, (ii) an ammeter with a maximum reading of 2.5 A.