How can a voltmeter of resistance 200 ohm and measuring 10 V be used to measure a current of 5 A?

A voltemeter reads up to 3 V. It resistance is 200 ohm. It is to be used to measure a potential difference, which may be as large as 60 V. What measures you would take to protect the voltmeter?

Two resistances of 400 ohm and 800 ohm are connected in series with 6 volt battery of negligible internal resistance. A voltmeter of resistance 10,000ohm is used to measure the potential difference across 400 ohm. The error in the measurement of potential difference in volt approximately .

A moving coil galvanometer of resistance 10 ohm produces full scale deflection, when a current of 25 mA is passed through it. How will your convert the galvanometer into a voltmeter reading upto 120 V

A voltmeter reads upto 3V. Its resistance is 200 Ohm. It is to be used to measure a potential difference which may be as large as 60V. What measure you would take to protect the voltmeter ?

Resistance of a galvanometer is 25 ohm it can carry a current of 0.5 mA. How can it be used to measure a current of 0.5 A.

The coil of a galvanometer has a resistance 100 ohm . It gives full scale deflection for a current of 5xx10^-4A . How will you convert it into a voltmeter of 5 V range?

A n ammeter of resistance 100 Omega can measure a maximum current of 5 mA. What will you do to measurea maximum current of 5 A .