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MHT CET2009PhysicsCurrent Electricity

A 2 ~V battery, a 990 resistor and a potentiometer of 2 ~m length, all are connected in series of the resistance of potentiometer wire is 10 , then the potential gradient of the potentiometer wire is

Options

  1. A0.05 Vm ⁻¹
  2. B0.5 Vm ⁻¹
  3. C0.01 Vm ⁻¹
  4. D0.1 Vm ⁻¹

Correct answer

C. 0.01 Vm ⁻¹

Step-by-step solution

Potential gradient x= e (R+R_ h +r ) R L x= 2 (990+10) 10 2 =0.01 Vm ⁻¹

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