Two charges `3times10^(-5)C` and `5times10^(4)C` are placed at a distance of `10cm` from each other. Find the value of electrostatic force acting between
(A) `13*5times10^(11)N`
(B) `3times10^(11)N`
(C) `18times10^(9)N`
(D) `13.5times10^(10)N`

(3^(5)times10^(5)times9)/((90)^(2))

Two protons are a distance of 1 xx 10^(-10) cm from each other. The force acting on them are

The average thermal energy of oxygen at a temperature of 27C (А) 6.2times10^(-21) J (В) 4.5times10^(-21) J (C) 3.5times10^(-21) J (D) 1.2times10^(-21) J

[" Two charges "4times10^(-9)C" and "-16times10^(-9)C" are "],[" separated by "a" distance "20cm" in air.The position of "],[" the neutral point from the small charge is "]

(5*10^(4))times(7times10^(7))

Simplify: 10^(-1)times10^(2)times10^(-3)times10^(4)times10^(-5)times10^(6)

Four charges 10^(-5) , -2times10^(-5) , +3times10^(-5) and 2times10^(-5) coulomb are placed at the four corners of a square of side 1m the potential at the centre of the square is...

There are 10 turns in coil M and 15 turns in coil N .If a current of 2A is passed through coil M then the flux linked with coil N is 1.8times10^(-3)Wb .If a current of 3A is passed through coil N then flux linked with coil M is : (A) 1.2times10^(-3)Wb (B) 2.7times10^(-3)Wb (C) 1.8times10^(-3)Wb (D) 4.05times10^(-3)Wb

If wavelength of electromagnetic wave in vacuum is 3times10^(5)m ,then its frequency is (A) 10^(3)Hz (B) 10^(2)Hz (C) 10Hz (D) 10^(5)Hz