KCET2015PhysicsCurrent Electricity
In the circuit shown below, the ammeter and the voltmeter readings are ( 3 ~A ) and ( 6 ~V ) respectively. Then the value of the resistance ( R ) is
Options
- A- ( 2 )
- B(R > 2 )
- C(R < 2 )
- D2
Correct answer
C. (R < 2 )
Step-by-step solution
Given, voltmeter reading ( =6 ~V ); ammeter reading ( =3 ~A ) Using ohm's law, ( V=I R ; R= V I R= 6 3 =2 ) This will be the case when ideal ammeter and voltmeter are used. Therefore, the value of resistance ( R ) is less than ( 2 ), that is ( R < 2 )