A parallel plate capacitor with circular plates of radius 0.8 m has a capacitance of 1 nF. At t = 0, it is connected for charging in series with a resistor R = 1 M Omega across a 4V battery. Calculate the magnetic field at a point P, halfway between the centre and the perpendicular of the plates after t=10^(-3)s. (The charge on the capacitor at time t is q (t) = CV [1 - exp (-t//tau)], where the time constant tau is equal to CR.)

A parallel plate capacitor with circular plates of radius 0.8 m has a

1.	A parallel plate capacitor with circular plates of radius 0.8 m has a capacitance of 1 nF. At t = 0, it is connected for charging in series with a resistor R = 1 M Omega across a 4V battery. Calculate the magnetic field at a point P, halfway between the centre and the perpendicular of the plates after t=10^(-3)s. (The charge on the capacitor at time t is q (t) = CV [1 - exp (-t//tau)], where the time constant tau is equal to CR.)
Answer» SOLUTION :`i_(d)=0.3679xx10^(-6)A, B=1.84xx10^(-13)T`.

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