यदि शुद्ध जल का परावैद्युतांक 81.0 हो, तो उसकी निरपेक्ष विद्युतशीलता कितनी होगी?
`( epsilon_(0)=8.86xx10^(12)"कुलॉम"^(2)//"न्यूटन मीटर"^(2) )`

यदि x^(2)+2=0 हो तो x का मान होगा-

Voltage rating of a parallel plate capacitor is 500V . Its dielectric can withstand a maximum electric field of 10^(6) V//m . The plate area is 10^(-4)m^(2) . What is the dielectric constant if the capacitance is 15pF ? (given epsilon_(0)=8.86xx10^(-12)C^(2)//Nm^(2) )

A cube of marble having each side 1 cm is kept in an electric field of intensity 300 V/m. Determine the energy contained in the cube of dielectric constant 8. [Given : epsilon_(0) =8.85 xx 10^(-12) C^(2)//Nm^(2) ]

An infinitely long thin straight wire has uniform linear charge density of 1/3Cm^(-1) .Then, the magnitude of the electric intensity at'a point 18 cm away is (given epsilon_(0) = 8.8 xx 10^(-12) C^(2) Nm^(-2))

A parallel plate capacitor has square plate of side 5 cm and separated by a distance of 1 mm . (a) Calculate the capacitance of this capacitor . (b) If a 10 V battery is connected to the capacitor what is the charge stored in any one of the plates? ( The value of epsilon_(0)= 8.85 xx10^(-12)Nm^(2)C^(-2)).

An electromagnetic wave of frequency 1xx10^(14) Hertz is propagating along z-axis. The amplitude of electric field is 4V//m . If epsilon_(0)=8.8xx10^(-12)C^(2)//N-m^(2) , then average energy density of electric field will be:

An electromagnetic wave of frequency 1xx10^(14) Hertz is propagating along z-axis. The amplitude of electric field is 4V//m . If epsilon_(0)=8.8xx10^(-12)C^(2)//N-m^(2) , then average energy density of electric field will be:

An electromagnetic wave fo frequency 1xx10^(14) Hz is propagating along z - axis. The amplitude of the electric field is 4V//m . If epsilon_(0)=8.8xx10^(-12)C^(2)//N-m^(2) , then the average energy density of electric field will be