Refer to the circuit diagram given below. The heat generated across the 6 , resistance in 100 second is 100 J. The value of is _______. (Nearest integer)

Step-by-step solution

Taking the right-hand wire as the reference node at 0 V , let the left junction (where the 3 , , 4 , and 6 , resistors meet) be Node A at potential V_A . Bottom branch: The positive terminal of the 2 V battery is at the reference, so its negative terminal (and hence the left end of the 3 , resistor) is at -2 V . Top branch: The positive terminal of the 3 V battery is at the reference, so its negative terminal (and hence the node between the 6 , resistor and the 3 V battery) is at -3 V . Applying KCL at Node A (sum