A voltmeter of resistance R is to be used to meaure a voltage 100 times as large as it can measure without an additional resistance in seires. How alrge a resistance is to be used in series with the meter?

A galvanometer of resistance G is converted into a voltmeter to measure upto V volts by connecting a resistance R_1 in series with the coil. If a resistance R_2 s connected in series with it then it can measure upto V/2 volts Find the resistance R, in terms of R_1 and R_2 required to convert it into a voltmeter that can read upto 2V volts.

Can one have inductance without a resistance ? How about a resistance without an inductance?

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

Using Ohm's Law, calculate the resistance of combination of few resistances joined in series.

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 ?