Current Electricity: NEET 2023

Medium· Kirchhoff's Rules (Kirchhoff's Voltage Law: Loop Rule)· +4 / −1

If the galvanometer

G

does not show any deflection in the circuit shown, the value of

R

is given by : Question diagram

*Circuit (described from the figure):* A rectangular circuit. The left branch contains a

10\ \mathrm{V}

battery (positive terminal up). The top wire contains a

400\ \Omega

resistor followed by the galvanometer

G

. The middle vertical branch, joining the top wire (between the

400\ \Omega

resistor and

G

) to the bottom wire, contains the resistor

R

. The right branch contains a

2\ \mathrm{V}

battery (positive terminal up). The bottom wire carries an arrow indicating the direction of the main current.

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