Question

draw the circuit diagram to verify the relation between current and voltage when resistance is constant / variable​

Answer 1

Given : verify the relation between current and voltage when resistance is constant or variable

To Find : Circuit Diagram

Solution:

I  = V/R

=> R = V/I

To Verify relation  between current and voltage

we need to find current through Resistance and voltage drop across resistance

Hence we need to put an ammeter in series with resistance

and voltmeter in parallel to resistance

Resistance can be fixed

or Resistance can be variable ( using Rheostat) a slanting arrow is used on resistance symbol to show variable resistance

A variable voltage source can be used

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