JEE Main 2017 (Online) 8th April Morning Slot | Current Electricity Question 288 | Physics

A 9 V battery with internal resistance of 0.5 $$\Omega $$ is connected across an infinite network as shown in the figure. All ammeters A₁, A₂, ₃ and voltmeter V are ideal.
Choose correct statement.

Reading of A₁ is 2 A

Reading of A₁ is 18 A

Reading of V is 9 V

Reading of V is 7 V

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MCQ (Single Correct Answer)

-1

When a current of 5 mA is passed through a galvanometer having a coil of resistance 15$$\Omega $$, it shows full scale deflection. The value of the resistance to be put in series with the galvanometer to convert it into a voltmeter of range 0 – 10V is:

4.005 × 10³ $$\Omega $$

1.985 × 10³ $$\Omega $$

2.535 × 10³ $$\Omega $$

2.045 × 10³ $$\Omega $$

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MCQ (Single Correct Answer)

-1

Which of the following statements is false?

Kirchhoff’s second law represents energy conservation.

Wheatstone bridge is the most sensitive when all the four resistances are of the same order of magnitude.

In a balanced wheatstone bridge if the cell and the galvanometer are exchanged, the null point is disturbed.

A rheostat can be used as a potential divider.