SOLVED: 'Q1) A moving coil instrument gives a full scale deflection for a current of 20 mA with a potential difference of 200 mV across it. Calculate the shunt resistance to use it as an ammeter to get a range of 0 500 A. Calculate the series resistance to use it as a voltmeter to get a range of 0 900 V.'

A circuit you're building needs an ammeter that goes from 0 mA to a full-scale reading of 10.0 mA. Unfortunately, the only ammeter in the storeroom goes from 0μA to a full-scale reading of only 500μA. Fortunately, you've just finished a physics class, and you realize that you can make this ammeter work by putting a resistor in parallel with it, as shown in the figure (Figure 1). You've measured that the resistance of the ammeter is 50.0 Ω, not the 0Ω of an ideal ammeter. What value of R must

Suppose the ammeter or voltmeter you are using in the Ohm's law experiment does not have positive and negative terminal markings. How will you use such an ammeter or voltmeter in the circuit?

Electric AC/DC Voltmeter Ammeter Circuit Voltage Detector Pen Tester 6-380V 8in1

How to Use an Ammeter

Current GaugeDC Ammeter with Hall Current Meter LED Digital Ammeter Striking Appearance - Walmart.ca

A student joined three resistances as shown in the circuit below. Calculate the current recorded by the ammeter