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

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

In fig the current through resistance (R) is

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 :

(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.

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))

If a cell is flowing current through external resistance then curve between terminal potential (V) and external resistance R is:

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.