An AC Voltage,V = 20 V Sin (1000 Rad/s T)is $\mu$

Multiple Choice

An AC voltage,V = 20 V sin (1000 rad/s t) is applied across a capacitor of capacitance C = 40 $\mu$ F.The capacitor is made of two circular plate each of radius r = 5 cm.What is the peak magnetic field at the circumference of the capacitor?

A) 1.2 $\mu$ T
B) 1.6.2 $\mu$ T
C) 3.2 $\mu$ T
D) 72 $\mu$ T
E) None of these is correct.