(a) When a cell sends current through a resistance R_(1) for time t, the heat produced in the re...

In fig the current through resistance (R) is

A cell sends a current through a resistance R_(1) for time t , next the same cell sends current through another resistance R_(2) for the time t If the same amount of heat is developed in both the resistance then find the internal resistance of the cell

A cell to emf. E and internal resistance r supplies currents for the same time t through external resistance R_1 and R_2 respectively. If the heat produced in both cases is the same, then the internal resistance is given by :

The charge flowing through a resistance R varies with time as Q=2t-8t^(2) . The total heat produced in the resistance is (for 0letle(1)/(8))

A current passing through a resistance R decreases uniformly to zero in a time internal T and a total charge q passes through resistance. Find the total heat produced in resistance in this process.

In a circuit when current of 4A is flown in a resistance for 1sec heat produced is 192J. If the current is doubled then heat produced in 5s in same resistance is....

(a) Write down the formula for the heat produced when a current I is passed through a resistor R for time t. (b) An electric iron of resistance 20 ohms draws a current of 5 amperes. Calculate the heat produced in 30 seconds.