The specific conductance in ohm- cm- of four electrolytes P, Q, R and S are given in brackets:
`{:(P(5.0 xx 10^(-5)),Q(7.0 xx 10^(-8))) ,(R(1.0 xx 10^(-10)),S(9.2xx 10^(-3))) :}`
The one that offer s highest resistance to the passage of electric current is:

The conductivity of four electrolytes P, Q, R, S in ohm^(-1) cm^(-1) area as follows P (5 xx 10^(-6)), Q (1 xx 10^(-10)), R (7 xx 10^(-8)), S(9.2 xx 10^(-3)) . The one which offers highest resistance to the passage of electric current is

The conductivity of four electrolytes P, Q, R, S in ohm^(-1) cm^(-1) area as follows P (5 xx 10^(-6)), Q (1 xx 10^(-10)), R (7 xx 10^(-8)), S(9.2 xx 10^(-3)) . The one which offers highest resistance to the passage of electric current is

0.5xx10^(-4)xx0.3xx10^(-3)xx10

The electrical resistivities of four materials P,Q,R and S are given below: {:(P,,6.84 xx 10^(-8) Omegam),(Q,,1.70 xx 10^(-8) Omega m),(R,,1.0 xx 10^(15) Omega m),(S,,11.0 xx 10^(-7)Omega m):} Which material will you use for making: (a) heating element of electric iron (b) connecting wire of electric iron (c) covering of connecting wires? Give reason for your choice in each case.

Conductivity of two electrolyte solutions A and B each having a concentration of 0.1 M are 8.5 xx 10^(-2) S cm^(-1) and 4.1 xx 10^(-4) S cm^(-1) , respectively. Which of the two offers less resistance to the flow of current ?

Find the number : a. (4xx10^(5))+(3xx10^(2))+(7xx10^(0)) b. (3xx10^(6))+(8xx10^(3))+(1xx10^(1))

Express the following mathematical operations in scientific notation (1) (7.7 xx 10^(4))+ (0.77 xx 10^(5)) (2) (8.7 xx 10^(4))/(0.77 xx 10^(5))