The `E°(M^2+/M)`value for copper is positive (+0.34
V). What is the possible reason for this ?

The E_(M^(2+) // M)^@ for copper is positive (0.34 V). Copper is the only metal in the first series of transition elements showing this behaviour.

Peak value of an a.c. source is E_0 . What is its r.m.s. value?

Peak value of an a.c. source is E_0 . What is its r.m.s. value?

State the principle of production of e.m. waves. What is the value of velociy of these waves?

A cell of e.m.f. 4 V and of negligible internal resistance is connected in series with a potentiometer wire of length 400 cm. The e.m.f. of a Leelanche cell is found to be balacned at 150 cm from the positive end of the potentiometer wire. What is the e.m.f. of the Leclanche cell ?

The A.M. between two positive numbers is 34 and their G.M. is 16. find the numbers.

Why current is not possible, without the source of e.m.f?

A copper silver cell is set up. The copper ion concentration is 0.10 M. the concentration of silver ion is not known. The cell potential when measured was 0.422V. Determine the concentration of silver ions in the cell. Given: E_(Ag^+|Ag)=+0.80V , E_(Cu^(2+)|Cu)=+0.34V