JEE | स्थिर वैद्युतिकी - L14 | static electricity | Class 12 भौतिक विज्ञान | Ravindra Sir | 6 PM

Circuit Theory - Current Electricity | Physics for JEE, NEET, CLASS 12

12:30 PM JEE Mains 2020 - Physics | Current Electricity - 30 Days Score Booster Course

The distance (in km) of 40 engineers from their residence to their place of work were found as follows: 5 3 10 20 25 11 13 7 12 31 19 10 12 17 18 11 32 17 16 2 7 9 7 8 3 5 12 15 18 3 12 14 2 9 6 15 15 7 6 12 Construct a grouped frequency distribution table with class size 5 for the data given above taking the first interval as 0-5 (5 not included). What main features do you observe from this tabular representation?

A radioactive with half life T=693.1 days. Emits beta -particles of average kinetic energy E=8.4xx10^(-14) joule. This radionuclide is used as source in a machine which generates electrical energy with efficiency eta=12.6% . Number of moles of the nuclide required to generate electrical energy at an initial rate is P=441 KW , is nxx10^(n) then find out value of (n)/(m) (log_(e )2=0.6931)N_(A)=6.023xx10^(23)

A capacitor of capacitance C=15pF is charged with voltage V=500V . The electric field inside the capacitor with dielectric is 10^(6)V//m and the area of the plate 10^(-4)m^(2) , then the dielectric constant of the medium is : (._(epsilon0)=8.85xx10^(-12) in S.I units) (A) 12.47 (B) 8.47 (C) 10.85 (D) 14.85

Electrolytic reduction of 6.15 g of nitrobenzene using a current efficiency of 40% will require which of the following quantity of electricity? [C =12, H=1, N=14,O=16]