While performing an experiment by using a given voltmeter, a student observes that the needle indicates 12 divions on the voltmeter scale. If the voltmeter scale has 5 divisions between 0 and 1.V, then what is the value corresponding to 12 divisions ?

In a given ammeter, a student sees that needle indicates 17 divisions in ammeter while performing an experiment to verify Ohm's law. If ammeter has 10 divisions between 0 and 0.5 A , then what is the value of 17 divisions ?

(a) What is least count of voltmeter ? (b) In a voltmeter there are 20 divisions between the '0' mark and 0.5 V mark. Calculate its least count.

A student finds that there are 20 divisions between the 0 mark and 1 V mark of a voltmeter. What is the least count of this voltmeter ?

While performing an experiment to determine the equivalent resistance of two resistors connected in parallel, a student observes the pointer of voltmeter at position X when the key is 'off' and the same pointer at position Y when the key is 'on'. The correct voltmeter reading is :

in an experiment the angles are required to be using an instrument, 29 divisions of the main scale exactly coincide with the 30 divisions of the vernier scale. If the sallest division of the main scale is half- a degree (= 0.5^(@) , then the least count of the instrument is :

In a experiment the angle are required to be measured using an instrument. 26 divisions of the main scale exactly coincide with the 30 divisions of the vernier scale . If the smallest division of the main scale is half -a-degree (=0.5^(@)) then the least count of the instrument is .

There are two Vernier calipers both of which have 1cm divided into 10 equal divisions on the main scale. The vernier scale of the calipers ( c_(1)) has 10 equal divisions that correspond to 9 main scale divisions. The Vernier scale of the other calipers ( C_(2)) has 10 equal divisions that correspond to 11 main scale divisions. the reading of the two calipers are shown in the figure. the measured values (in cm) by calipers C_(1) and C_(2) respectively, are

The diameter of a spherical bob is measured using a vernier callipers . 9 divisions of the main scale ,in the vernier callipers ,are equal to 10 divisions of vernier scale .One main scale division is 1 mm . The main scale reading is 10mm and 8th division of vernier scale was found to coincide exactly with one of the main scale division .If the given vernier callipers has positive zero error of 0.04 cm , then the radius of the bob is __________ xx10^(-2) cm.