In the wheatstone bridge circuit shown below, P = 10 ohm, Q = 20ohm, R = 200 ohm and S = 100 ohm , emf of the battery being 2V. The current flowing through the galvanometer is :
A) 0

In Wheatstone's bridge P = 9 ohm , Q = 11 ohm , R = 4 ohm and S = 6 ohm . How much resistance must be put in parallel to the resistance S to balance the bridge

320J of heat is produced in 10s in a 2ohm resistor. Find amount of current flowing through the resistor ?

A galvanometer of resistance 150 ohm is shunted such that only 1/11 of the main current flows through the galvanometer. The resistance of the shunt is, (in ohm)

In the circuit shown here, E_(1) = E_(2) = E_(3) = 2 V and R_(1) = R_(2) = 4 ohms . The current flowing between point A and B through battery E_(2) is

In the circuit shown , the value of R in ohm that will result in no current through the 30 V battery is

In the circuit shown in Fig 7.25 , (a) what must the emf epsilon of the battery be in order for a current of 2.00 A to flow through the 5.00 V battery , as shown ? Is the polarity of the battery shown is correct? b. How long does it take for 60.0 J of thermal energy to be produced in the 10.0 Omega resistor?

The resistance of the four arms P, Q, R and S in a Wheatstone's bridge are 10 ohm 30 ohm and 90 ohm rerspectively. The e.m.f. and internal resistance of the cell are 7 V and 5 ohm respectively. If the galvanometer resistance is 50 ohm , the current drawn for the cell will be

The resistance of a galvanometer is 90 ohm s. If only 10 percent of the main current may flow through the galvanometer, in which way and of what value, a resistor is to be used

In the circuit shown in fig the heat produced in the 5 ohm resistor due to the current flowing through it is 10 calories per second. The heat generated in the 4 ohms resistor is

In the circuit shown below, each battery is 5V and has an internal resistance of 0.2 ohm. The reading in the ideal voltmeter V is .