NCERT 2022 | विद्युत - L16 | Electricity | Class 10 विज्ञान | Hindi Medium | Ruchi Ma'am| 6 PM

A charged dust particle of radius 5 xx 10^(-7)m is located in a horizontal electric field having an intensity of 6.28 xx 10^(5) V m^(-1) . The surrounding medium in air with coefficient of viscosity eta = 1.6 xx 10^(-15) Ns m^(-2) . If this particle moves with a uniform horizontal speed of 0.01 ms^(-1), the number of electrons on it will be

A parallel plate air condenser whose each plate has an area S = 100 cm^(2) is connected in series to an ac circuit. Find the electric field strength amplitude in the capacitor if the sinusolidal current amplitude in lead wires is equal to I_(m) = 1.0 mA and the current frequency equals omega = 1.6 . 10^(7)S^(-1) .

Find the AM of the following data by short-cut method. {:("Class Interval",f),(" "1-5,5),(" "6-10,10),(" "11-15,15),(" "16-20,10),(" "21-25,5):}