6 A student sets up a circuit containing three identical cells. Each cell has an e. mf. (electromotive
force) of 2.0V.
Fig. 8.1 shows the cells in series with a length of uniform metal wire connected between two
terminals Kand L, an ammeter and a resistor X.

Fig. 8.1
(a) State the total e. mf. of the three cells in series.
total e. m.f. =
[1]
(b) The ammeter reading is 0.25A.
(1) State the name of the unit in which electric charge is measured.
(11) Calculate the charge that flows through the circuit in twelve minutes.

it becomes positively charged by charging it

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .

it's a b and

= initial pressure

= final pressure = 2

= initial volume

= final volume = /4

= initial temperature = 20 c = 20 + 273 = 293 k

= final temperature = ?

using the equation