8) Which one of the following statements is true about the internal resistance of an ammeter and a voltmeter ?

The internal resistance of an ammeter should be very low and that of a voltmeter should be very high

The internal resistance of an ammeter should be very high and that of a voltmeter should be very low

The internal resistance of an ammeter and a voltmeter should be very low

The internal resistance of an ammeter and a voltmeter should be very high

Answer is:

The internal resistance of an ammeter should be very low and that of a voltmeter should be very high

the life of the instrument

the extent to which its characteristics remain linear

the degree to which repeatability continues to remain within specific limits

all of these

Answer is:

the maximum value of a physical quantity that can be measured

the highest reading of the scale

the minimum reading of the scale

the smallest amount of a physical quantity that can be detected by the instrument

Answer is:

a low resistance is connected in series

a low resistance is connected in parallel

a high resistance is connected in series

a high resistance is connected in parallel

Answer is:

Explanation:

To increase the range of voltmeter we need to connect a high resistance in series. So, that equivalent resistance is more, So, range is more.

decrease the multiplier resistance

use an instrument with a high internal resistance

use a shunt resistor

use an a.c. meter with a rectifier

Answer is: