Question

A power supply of electromotive force (e.m.f) and negligible internal resistance connected in series with resistors of resistance and as shown
A voltmeter measures the potential difference (p.d) across the  resistor and an ammeter measures the current in the circuit.
What are suitable ranges for the ammeter and for the voltmeter?

expand
A

ammeter range voltmeter range

B

ammeter range voltmeter range

C

ammeter range voltmeter range

D

ammeter range voltmeter range

Medium

Solution

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Correct option is
D

ammeter range voltmeter range

It is given that 
                            =
So, 
Current
             
P.d. across
                     
                     
Since the current and voltage value fall in the range of ammeter and voltmeter given in option D.
So, option D is correct.

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