Question

A parallel plate capacitor of area $60\, cm^2$ and separation $3\, mm$ is charged initially to $90\, \mu C$. If the medium between the plate gets slightly conducting and the plate loses the charge initially at the rate of $2.5 \times 10^{-8}\, C/s$, then what is the magnetic field between the plates ?

• A. $2.5 \times 10^{-8}\, T$
• B. $2.0 \times 10^{-7}\, T$
• C. $1.63 \times 10^{-11}\, T$
• D. zero

Answer 1

Answer: (D)

zero

Answer 2

Magnetic field between the plates in this case is zero.