Question

across
Q. 4) Two
resistance 20ohm and 30 ohm are connected across the two
gap meter bridge as shown in figure
the following figure..
The bridge wire has diameter 0.5 mm and resistance 2 ohm . the
emf of the cell is 2 v. Assume that internal
resistance of the cell is zero. calculate
the resistivity (specific resistance) of the material
of the bridge wire.
current provided by the cell when the bridge
is balanced
​

Answer 1

Answer:

Use Ohm's Law to determine the total resistance. The following formula is used to determine the total resistance in a circuit when both current and voltage are known: R = V / I, where R = Resistance, V = Voltage, and I = Current