Question

A student draws the following circuit diagram for the experiment on studying the dependence of current (/) on p.d. (V) across a resistor. The parts labelled X, Y and Z, in this diagram are, respectively,

Answer 1

Answer:

X = AMMETER

Y = RESISTANCE

Z = VOLTMETER

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Answer 2

In the given figure X = Ammeter, Y = Resistance and Z = Voltmeter.

Ammeter: A instrument called an ammeter is used to measure either direct current or alternating current. We are aware that the unit of current is the ampere. This instrument is called an ammeter because it measures current in amperes. An ideal ammeter has zero internal resistance and always provides low resistance. Its internal resistance is generally weak.

Voltmeter : A voltmeter, also referred to as a voltage metre, is a device that determines the voltage or potential difference existing between two points in an electrical or electronic circuit. Direct Current (DC) or Alternating Current (AC) circuits are typically the two types of circuits that the voltmeter is used for.

Alternately, specialised voltmeters can also be used to measure Radio Frequency (RF) voltage.

Resistance : Resistance is a term used to describe a material's ability to permit the flow of electric current. Without a doubt, resistance prevents current from flowing. Additionally, the Greek uppercase letter omega is used to denote the unit of resistance, which is the ohm.

resistance formula is as follows: $R =\frac{V}{I}$

X = Ammeter

Y = Resistance

Z = Voltmeter

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